77206051 has 8 divisors (see below), whose sum is σ = 83215664. Its totient is φ = 71206560.

The previous prime is 77205991. The next prime is 77206057. The reversal of 77206051 is 15060277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77206051 - 2⁹ = 77205539 is a prime.

It is a super-2 number, since 2×77206051² = 11921548622029202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77206057) 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, 22681 + ... + 25861.

It is an arithmetic number, because the mean of its divisors is an integer number (10401958).

Almost surely, 2^77206051 is an apocalyptic number.

77206051 is a deficient number, since it is larger than the sum of its proper divisors (6009613).

77206051 is a wasteful number, since it uses less digits than its factorization.

77206051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 77206051 is about 8786.6973886666. The cubic root of 77206051 is about 425.8112320956.

The spelling of 77206051 in words is "seventy-seven million, two hundred six thousand, fifty-one".