674032978 has 4 divisors (see below), whose sum is σ = 1011049470. Its totient is φ = 337016488.

The previous prime is 674032973. The next prime is 674032987. The reversal of 674032978 is 879230476.

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

It can be written as a sum of positive squares in only one way, i.e., 448041889 + 225991089 = 21167^2 + 15033^2 .

It is not an unprimeable number, because it can be changed into a prime (674032973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168508243 + ... + 168508246.

Almost surely, 2^674032978 is an apocalyptic number.

674032978 is a deficient number, since it is larger than the sum of its proper divisors (337016492).

674032978 is a wasteful number, since it uses less digits than its factorization.

674032978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337016491.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 674032978 is about 25962.1450962743. The cubic root of 674032978 is about 876.7862191159.

The spelling of 674032978 in words is "six hundred seventy-four million, thirty-two thousand, nine hundred seventy-eight".