74977854 has 64 divisors (see below), whose sum is σ = 182808576. Its totient is φ = 20012544.

The previous prime is 74977787. The next prime is 74977867. The reversal of 74977854 is 45877947.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 74977797 and 74977806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123219 + ... + 123825.

It is an arithmetic number, because the mean of its divisors is an integer number (2856384).

Almost surely, 2^74977854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74977854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91404288).

74977854 is an abundant number, since it is smaller than the sum of its proper divisors (107830722).

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

74977854 is a wasteful number, since it uses less digits than its factorization.

74977854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 1975680, while the sum is 51.

The square root of 74977854 is about 8658.9753435381. The cubic root of 74977854 is about 421.6748204318.

It can be divided in two parts, 7497 and 7854, that added together give a palindrome (15351).

The spelling of 74977854 in words is "seventy-four million, nine hundred seventy-seven thousand, eight hundred fifty-four".