77085042 has 8 divisors (see below), whose sum is σ = 154170096. Its totient is φ = 25695012.

The previous prime is 77085013. The next prime is 77085053. The reversal of 77085042 is 24058077.

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

77085042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 77084994 and 77085012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6423748 + ... + 6423759.

It is an arithmetic number, because the mean of its divisors is an integer number (19271262).

Almost surely, 2^77085042 is an apocalyptic number.

77085042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77085042 is a wasteful number, since it uses less digits than its factorization.

77085042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12847512.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 77085042 is about 8779.8087678491. The cubic root of 77085042 is about 425.5886505126.

The spelling of 77085042 in words is "seventy-seven million, eighty-five thousand, forty-two".