674620545 has 8 divisors (see below), whose sum is σ = 1079392896. Its totient is φ = 359797616.

The previous prime is 674620523. The next prime is 674620559. The reversal of 674620545 is 545026476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 674620545 - 2¹⁰ = 674619521 is a prime.

It is a super-2 number, since 2×674620545² = 910225759472194050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22487337 + ... + 22487366.

It is an arithmetic number, because the mean of its divisors is an integer number (134924112).

Almost surely, 2^674620545 is an apocalyptic number.

It is an amenable number.

674620545 is a deficient number, since it is larger than the sum of its proper divisors (404772351).

674620545 is a wasteful number, since it uses less digits than its factorization.

674620545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44974711.

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 674620545 is about 25973.4584720634. The cubic root of 674620545 is about 877.0409153711.

The spelling of 674620545 in words is "six hundred seventy-four million, six hundred twenty thousand, five hundred forty-five".