77252763 has 12 divisors (see below), whose sum is σ = 119820840. Its totient is φ = 44144352.

The previous prime is 77252759. The next prime is 77252821. The reversal of 77252763 is 36725277.

It is not a de Polignac number, because 77252763 - 2² = 77252759 is a prime.

It is a super-2 number, since 2×77252763² = 11935978782268338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77250763) by changing a digit.

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, 262618 + ... + 262911.

It is an arithmetic number, because the mean of its divisors is an integer number (9985070).

Almost surely, 2^77252763 is an apocalyptic number.

77252763 is a deficient number, since it is larger than the sum of its proper divisors (42568077).

77252763 is a wasteful number, since it uses less digits than its factorization.

77252763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525546 (or 525539 counting only the distinct ones).

The product of its digits is 123480, while the sum is 39.

The square root of 77252763 is about 8789.3550957963. The cubic root of 77252763 is about 425.8970910143.

It can be divided in two parts, 772 and 52763, that added together give a palindrome (53535).

The spelling of 77252763 in words is "seventy-seven million, two hundred fifty-two thousand, seven hundred sixty-three".