77412052 has 6 divisors (see below), whose sum is σ = 135471098. Its totient is φ = 38706024.

The previous prime is 77412037. The next prime is 77412077. The reversal of 77412052 is 25021477.

It can be written as a sum of positive squares in only one way, i.e., 77369616 + 42436 = 8796^2 + 206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77412052.

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, 9676503 + ... + 9676510.

Almost surely, 2^77412052 is an apocalyptic number.

It is an amenable number.

77412052 is a deficient number, since it is larger than the sum of its proper divisors (58059046).

77412052 is a wasteful number, since it uses less digits than its factorization.

77412052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19353017 (or 19353015 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 77412052 is about 8798.4119021560. The cubic root of 77412052 is about 426.1896119334.

The spelling of 77412052 in words is "seventy-seven million, four hundred twelve thousand, fifty-two".