674023019 has 4 divisors (see below), whose sum is σ = 674152296. Its totient is φ = 673893744.

The previous prime is 674023013. The next prime is 674023033. The reversal of 674023019 is 910320476.

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 674023019 - 2⁴ = 674023003 is a prime.

It is a super-2 number, since 2×674023019² = 908614060283748722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674023013) 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, 56474 + ... + 67359.

It is an arithmetic number, because the mean of its divisors is an integer number (168538074).

Almost surely, 2^674023019 is an apocalyptic number.

674023019 is a deficient number, since it is larger than the sum of its proper divisors (129277).

674023019 is a wasteful number, since it uses less digits than its factorization.

674023019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129276.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 674023019 is about 25961.9532970846. The cubic root of 674023019 is about 876.7819008519.

The spelling of 674023019 in words is "six hundred seventy-four million, twenty-three thousand, nineteen".