674400007 has 4 divisors (see below), whose sum is σ = 674524840. Its totient is φ = 674275176.

The previous prime is 674399993. The next prime is 674400029. The reversal of 674400007 is 700004476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 674400007 - 2²³ = 666011399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674404007) 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, 53928 + ... + 65245.

It is an arithmetic number, because the mean of its divisors is an integer number (168631210).

Almost surely, 2^674400007 is an apocalyptic number.

674400007 is a deficient number, since it is larger than the sum of its proper divisors (124833).

674400007 is a wasteful number, since it uses less digits than its factorization.

674400007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124832.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 674400007 is about 25969.2126757821. The cubic root of 674400007 is about 876.9453347609.

The spelling of 674400007 in words is "six hundred seventy-four million, four hundred thousand, seven".