31796398 has 8 divisors (see below), whose sum is σ = 48503160. Its totient is φ = 15628680.

The previous prime is 31796381. The next prime is 31796399. The reversal of 31796398 is 89369713.

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

It is a super-2 number, since 2×31796398² = 2022021851548808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31796399) 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, 134613 + ... + 134848.

It is an arithmetic number, because the mean of its divisors is an integer number (6062895).

Almost surely, 2^31796398 is an apocalyptic number.

31796398 is a deficient number, since it is larger than the sum of its proper divisors (16706762).

31796398 is a wasteful number, since it uses less digits than its factorization.

31796398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269522.

The product of its digits is 244944, while the sum is 46.

The square root of 31796398 is about 5638.8294884666. The cubic root of 31796398 is about 316.8054480642.

The spelling of 31796398 in words is "thirty-one million, seven hundred ninety-six thousand, three hundred ninety-eight".