671474777 has 4 divisors (see below), whose sum is σ = 672107520. Its totient is φ = 670842036.

The previous prime is 671474767. The next prime is 671474809. The reversal of 671474777 is 777474176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671474777 - 2²² = 667280473 is a prime.

It is a super-2 number, since 2×671474777² = 901756752294399458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671474707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314777 + ... + 316902.

It is an arithmetic number, because the mean of its divisors is an integer number (168026880).

Almost surely, 2^671474777 is an apocalyptic number.

It is an amenable number.

671474777 is a deficient number, since it is larger than the sum of its proper divisors (632743).

671474777 is a wasteful number, since it uses less digits than its factorization.

671474777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632742.

The product of its digits is 1613472, while the sum is 50.

The square root of 671474777 is about 25912.8303548647. The cubic root of 671474777 is about 875.6755716569.

The spelling of 671474777 in words is "six hundred seventy-one million, four hundred seventy-four thousand, seven hundred seventy-seven".