674168401 has 8 divisors (see below), whose sum is σ = 685998504. Its totient is φ = 662363520.

The previous prime is 674168389. The next prime is 674168437. The reversal of 674168401 is 104861476.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45914176 + 628254225 = 6776^2 + 25065^2 .

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 674168401 - 2¹⁵ = 674135633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674168441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52335 + ... + 63931.

It is an arithmetic number, because the mean of its divisors is an integer number (85749813).

Almost surely, 2^674168401 is an apocalyptic number.

674168401 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

674168401 is a deficient number, since it is larger than the sum of its proper divisors (11830103).

674168401 is a wasteful number, since it uses less digits than its factorization.

674168401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12611.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 674168401 is about 25964.7530510113. The cubic root of 674168401 is about 876.8449348726.

The spelling of 674168401 in words is "six hundred seventy-four million, one hundred sixty-eight thousand, four hundred one".