77245086 has 16 divisors (see below), whose sum is σ = 161207424. Its totient is φ = 24628824.

The previous prime is 77245081. The next prime is 77245097. The reversal of 77245086 is 68054277.

It is a super-2 number, since 2×77245086² = 11933606622294792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77245081) 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, 279736 + ... + 280011.

It is an arithmetic number, because the mean of its divisors is an integer number (10075464).

Almost surely, 2^77245086 is an apocalyptic number.

77245086 is an abundant number, since it is smaller than the sum of its proper divisors (83962338).

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

77245086 is a wasteful number, since it uses less digits than its factorization.

77245086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559775.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 77245086 is about 8788.9183634848. The cubic root of 77245086 is about 425.8829826936.

The spelling of 77245086 in words is "seventy-seven million, two hundred forty-five thousand, eighty-six".