1972677084 has 72 divisors (see below), whose sum is σ = 5422314240. Its totient is φ = 556474464.

The previous prime is 1972677053. The next prime is 1972677097. The reversal of 1972677084 is 4807762791.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25219 + ... + 67685.

It is an arithmetic number, because the mean of its divisors is an integer number (75309920).

Almost surely, 2^1972677084 is an apocalyptic number.

1972677084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1972677084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2711157120).

1972677084 is an abundant number, since it is smaller than the sum of its proper divisors (3449637156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1972677084 is a wasteful number, since it uses less digits than its factorization.

1972677084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567 (or 42558 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 1972677084 is about 44414.8295505004. The cubic root of 1972677084 is about 1254.1572696129.

The spelling of 1972677084 in words is "one billion, nine hundred seventy-two million, six hundred seventy-seven thousand, eighty-four".