77157004 has 12 divisors (see below), whose sum is σ = 135458344. Its totient is φ = 38454624.

The previous prime is 77156987. The next prime is 77157071. The reversal of 77157004 is 40075177.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29562 + ... + 32065.

Almost surely, 2^77157004 is an apocalyptic number.

It is an amenable number.

77157004 is a deficient number, since it is larger than the sum of its proper divisors (58301340).

77157004 is a wasteful number, since it uses less digits than its factorization.

77157004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61944 (or 61942 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 77157004 is about 8783.9059648883. The cubic root of 77157004 is about 425.7210440542.

It can be divided in two parts, 771 and 57004, that added together give a palindrome (57775).

The spelling of 77157004 in words is "seventy-seven million, one hundred fifty-seven thousand, four".