31103797 has 8 divisors (see below), whose sum is σ = 33007680. Its totient is φ = 29245920.

The previous prime is 31103783. The next prime is 31103803. The reversal of 31103797 is 79730113.

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 31103797 - 2¹⁹ = 30579509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31109797) 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, 10104 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (4125960).

Almost surely, 2^31103797 is an apocalyptic number.

It is an amenable number.

31103797 is a deficient number, since it is larger than the sum of its proper divisors (1903883).

31103797 is a wasteful number, since it uses less digits than its factorization.

31103797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23003.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 31103797 is about 5577.0778190734. The cubic root of 31103797 is about 314.4882831337.

The spelling of 31103797 in words is "thirty-one million, one hundred three thousand, seven hundred ninety-seven".