77252668 has 6 divisors (see below), whose sum is σ = 135192176. Its totient is φ = 38626332.

The previous prime is 77252647. The next prime is 77252671. The reversal of 77252668 is 86625277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9656580 + ... + 9656587.

Almost surely, 2^77252668 is an apocalyptic number.

It is an amenable number.

77252668 is a deficient number, since it is larger than the sum of its proper divisors (57939508).

77252668 is a wasteful number, since it uses less digits than its factorization.

77252668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19313171 (or 19313169 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 77252668 is about 8789.3496915301. The cubic root of 77252668 is about 425.8969164348.

The spelling of 77252668 in words is "seventy-seven million, two hundred fifty-two thousand, six hundred sixty-eight".