77066906 has 24 divisors (see below), whose sum is σ = 135147456. Its totient is φ = 32863320.

The previous prime is 77066881. The next prime is 77066917. The reversal of 77066906 is 60966077.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18815 + ... + 22541.

It is an arithmetic number, because the mean of its divisors is an integer number (5631144).

Almost surely, 2^77066906 is an apocalyptic number.

77066906 is a deficient number, since it is larger than the sum of its proper divisors (58080550).

77066906 is a wasteful number, since it uses less digits than its factorization.

77066906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3947 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 77066906 is about 8778.7758827755. The cubic root of 77066906 is about 425.5552714421. Note that the first 3 decimals are identical.

It can be divided in two parts, 770 and 66906, that added together give a palindrome (67676).

The spelling of 77066906 in words is "seventy-seven million, sixty-six thousand, nine hundred six".