677772291 has 32 divisors (see below), whose sum is σ = 1052421120. Its totient is φ = 380007936.

The previous prime is 677772283. The next prime is 677772323. The reversal of 677772291 is 192277776.

It is not a de Polignac number, because 677772291 - 2³ = 677772283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677772291.

It is not an unprimeable number, because it can be changed into a prime (677772091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254730 + ... + 257376.

It is an arithmetic number, because the mean of its divisors is an integer number (32888160).

Almost surely, 2^677772291 is an apocalyptic number.

677772291 is a deficient number, since it is larger than the sum of its proper divisors (374648829).

677772291 is a wasteful number, since it uses less digits than its factorization.

677772291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883.

The product of its digits is 518616, while the sum is 48.

The square root of 677772291 is about 26034.0602096561. The cubic root of 677772291 is about 878.4046037782.

The spelling of 677772291 in words is "six hundred seventy-seven million, seven hundred seventy-two thousand, two hundred ninety-one".