77400475 has 12 divisors (see below), whose sum is σ = 96271864. Its totient is φ = 61729920.

The previous prime is 77400467. The next prime is 77400481. The reversal of 77400475 is 57400477.

It is not a de Polignac number, because 77400475 - 2³ = 77400467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77400475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3832 + ... + 13018.

Almost surely, 2^77400475 is an apocalyptic number.

77400475 is a deficient number, since it is larger than the sum of its proper divisors (18871389).

77400475 is a wasteful number, since it uses less digits than its factorization.

77400475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 77400475 is about 8797.7539747370. The cubic root of 77400475 is about 426.1683652713.

The spelling of 77400475 in words is "seventy-seven million, four hundred thousand, four hundred seventy-five".