77006897 has 16 divisors (see below), whose sum is σ = 87272640. Its totient is φ = 67334400.

The previous prime is 77006887. The next prime is 77006903. The reversal of 77006897 is 79860077.

It is a cyclic number.

It is not a de Polignac number, because 77006897 - 2⁶ = 77006833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77006857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31754 + ... + 34092.

It is an arithmetic number, because the mean of its divisors is an integer number (5454540).

Almost surely, 2^77006897 is an apocalyptic number.

It is an amenable number.

77006897 is a deficient number, since it is larger than the sum of its proper divisors (10265743).

77006897 is a wasteful number, since it uses less digits than its factorization.

77006897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 77006897 is about 8775.3573716402. The cubic root of 77006897 is about 425.4447883189. Note that the first 3 decimals are identical.

The spelling of 77006897 in words is "seventy-seven million, six thousand, eight hundred ninety-seven".