31444007 has 12 divisors (see below), whose sum is σ = 36924048. Its totient is φ = 26215200.

The previous prime is 31444003. The next prime is 31444009. The reversal of 31444007 is 70044413.

It is not a de Polignac number, because 31444007 - 2² = 31444003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94832 + ... + 95162.

It is an arithmetic number, because the mean of its divisors is an integer number (3077004).

Almost surely, 2^31444007 is an apocalyptic number.

31444007 is a deficient number, since it is larger than the sum of its proper divisors (5480041).

31444007 is an frugal number, since it uses more digits than its factorization.

31444007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 31444007 is about 5607.4956085582. The cubic root of 31444007 is about 315.6307408948.

The spelling of 31444007 in words is "thirty-one million, four hundred forty-four thousand, seven".