494901631 has 4 divisors (see below), whose sum is σ = 565601872. Its totient is φ = 424201392.

The previous prime is 494901613. The next prime is 494901679. The reversal of 494901631 is 136109494.

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 494901631 - 2⁵ = 494901599 is a prime.

It is a super-2 number, since 2×494901631² = 489855248732920322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494901691) 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, 35350110 + ... + 35350123.

It is an arithmetic number, because the mean of its divisors is an integer number (141400468).

Almost surely, 2^494901631 is an apocalyptic number.

494901631 is a deficient number, since it is larger than the sum of its proper divisors (70700241).

494901631 is an equidigital number, since it uses as much as digits as its factorization.

494901631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70700240.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 494901631 is about 22246.3846725710. The cubic root of 494901631 is about 790.9935856037.

The spelling of 494901631 in words is "four hundred ninety-four million, nine hundred one thousand, six hundred thirty-one".