1972089835 has 8 divisors (see below), whose sum is σ = 2369274336. Its totient is φ = 1575827520.

The previous prime is 1972089829. The next prime is 1972089839. The reversal of 1972089835 is 5389802791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1972089835 - 2¹¹ = 1972087787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972089839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225831 + ... + 234400.

It is an arithmetic number, because the mean of its divisors is an integer number (296159292).

Almost surely, 2^1972089835 is an apocalyptic number.

1972089835 is a deficient number, since it is larger than the sum of its proper divisors (397184501).

1972089835 is an equidigital number, since it uses as much as digits as its factorization.

1972089835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461093.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 1972089835 is about 44408.2181020585. The cubic root of 1972089835 is about 1254.0328066510.

The spelling of 1972089835 in words is "one billion, nine hundred seventy-two million, eighty-nine thousand, eight hundred thirty-five".