77085476 has 12 divisors (see below), whose sum is σ = 145276572. Its totient is φ = 35577888.

The previous prime is 77085439. The next prime is 77085511. The reversal of 77085476 is 67458077.

It can be written as a sum of positive squares in 2 ways, for example, as 13468900 + 63616576 = 3670^2 + 7976^2 .

It is a super-2 number, since 2×77085476² = 11884341220293152, which contains 22 as substring.

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, 741155 + ... + 741258.

It is an arithmetic number, because the mean of its divisors is an integer number (12106381).

Almost surely, 2^77085476 is an apocalyptic number.

It is an amenable number.

77085476 is a deficient number, since it is larger than the sum of its proper divisors (68191096).

77085476 is a wasteful number, since it uses less digits than its factorization.

77085476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482430 (or 1482428 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 77085476 is about 8779.8334836146. The cubic root of 77085476 is about 425.5894492198.

The spelling of 77085476 in words is "seventy-seven million, eighty-five thousand, four hundred seventy-six".