674839969 has 4 divisors (see below), whose sum is σ = 674990080. Its totient is φ = 674689860.

The previous prime is 674839933. The next prime is 674839993. The reversal of 674839969 is 969938476.

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 674839969 - 2¹⁵ = 674807201 is a prime.

It is a super-2 number, since 2×674839969² = 910817967519841922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674839909) 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, 68097 + ... + 77374.

It is an arithmetic number, because the mean of its divisors is an integer number (168747520).

Almost surely, 2^674839969 is an apocalyptic number.

It is an amenable number.

674839969 is a deficient number, since it is larger than the sum of its proper divisors (150111).

674839969 is a wasteful number, since it uses less digits than its factorization.

674839969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150110.

The product of its digits is 17635968, while the sum is 61.

The square root of 674839969 is about 25977.6821329387. The cubic root of 674839969 is about 877.1359925058.

The spelling of 674839969 in words is "six hundred seventy-four million, eight hundred thirty-nine thousand, nine hundred sixty-nine".