77065652 has 12 divisors (see below), whose sum is σ = 134926596. Its totient is φ = 38515200.

The previous prime is 77065643. The next prime is 77065679. The reversal of 77065652 is 25656077.

It can be written as a sum of positive squares in 2 ways, for example, as 55294096 + 21771556 = 7436^2 + 4666^2 .

It is a super-2 number, since 2×77065652² = 11878229436370208, which contains 22 as substring.

It is a congruent number.

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, 13652 + ... + 18452.

It is an arithmetic number, because the mean of its divisors is an integer number (11243883).

Almost surely, 2^77065652 is an apocalyptic number.

It is an amenable number.

77065652 is a deficient number, since it is larger than the sum of its proper divisors (57860944).

77065652 is a wasteful number, since it uses less digits than its factorization.

77065652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8818 (or 8816 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 77065652 is about 8778.7044602265. The cubic root of 77065652 is about 425.5529632779.

The spelling of 77065652 in words is "seventy-seven million, sixty-five thousand, six hundred fifty-two".