31494685 has 8 divisors (see below), whose sum is σ = 39782880. Its totient is φ = 23869584.

The previous prime is 31494679. The next prime is 31494689. The reversal of 31494685 is 58649413.

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 31494685 - 2¹³ = 31486493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31494689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165667 + ... + 165856.

It is an arithmetic number, because the mean of its divisors is an integer number (4972860).

Almost surely, 2^31494685 is an apocalyptic number.

It is an amenable number.

31494685 is a deficient number, since it is larger than the sum of its proper divisors (8288195).

31494685 is a wasteful number, since it uses less digits than its factorization.

31494685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331547.

The product of its digits is 103680, while the sum is 40.

The square root of 31494685 is about 5612.0125623523. The cubic root of 31494685 is about 315.8002162111.

The spelling of 31494685 in words is "thirty-one million, four hundred ninety-four thousand, six hundred eighty-five".