674087641 has 4 divisors (see below), whose sum is σ = 678223312. Its totient is φ = 669951972.

The previous prime is 674087627. The next prime is 674087647. The reversal of 674087641 is 146780476.

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 674087641 - 2¹⁵ = 674054873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674087647) 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, 2067591 + ... + 2067916.

It is an arithmetic number, because the mean of its divisors is an integer number (169555828).

Almost surely, 2^674087641 is an apocalyptic number.

It is an amenable number.

674087641 is a deficient number, since it is larger than the sum of its proper divisors (4135671).

674087641 is a wasteful number, since it uses less digits than its factorization.

674087641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135670.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 674087641 is about 25963.1978192210. The cubic root of 674087641 is about 876.8099204634.

The spelling of 674087641 in words is "six hundred seventy-four million, eighty-seven thousand, six hundred forty-one".