74077631 has 8 divisors (see below), whose sum is σ = 76873728. Its totient is φ = 71307000.

The previous prime is 74077621. The next prime is 74077649. The reversal of 74077631 is 13677047.

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

It is a cyclic number.

It is not a de Polignac number, because 74077631 - 2⁶ = 74077567 is a prime.

It is a super-2 number, since 2×74077631² = 10974990829144322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74077591 and 74077600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74077621) 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, 335 + ... + 12176.

It is an arithmetic number, because the mean of its divisors is an integer number (9609216).

Almost surely, 2^74077631 is an apocalyptic number.

74077631 is a deficient number, since it is larger than the sum of its proper divisors (2796097).

74077631 is a wasteful number, since it uses less digits than its factorization.

74077631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12733.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 74077631 is about 8606.8362944813. The cubic root of 74077631 is about 419.9804053595.

The spelling of 74077631 in words is "seventy-four million, seventy-seven thousand, six hundred thirty-one".