31880901 has 16 divisors (see below), whose sum is σ = 46114880. Its totient is φ = 19474560.

The previous prime is 31880897. The next prime is 31880909. The reversal of 31880901 is 10908813.

It is not a de Polignac number, because 31880901 - 2² = 31880897 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 (31880909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2481 + ... + 8361.

It is an arithmetic number, because the mean of its divisors is an integer number (2882180).

Almost surely, 2^31880901 is an apocalyptic number.

It is an amenable number.

31880901 is a deficient number, since it is larger than the sum of its proper divisors (14233979).

31880901 is a wasteful number, since it uses less digits than its factorization.

31880901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 31880901 is about 5646.3174724771. The cubic root of 31880901 is about 317.0858501602.

The spelling of 31880901 in words is "thirty-one million, eight hundred eighty thousand, nine hundred one".