31444379 has 2 divisors, whose sum is σ = 31444380. Its totient is φ = 31444378.

The previous prime is 31444367. The next prime is 31444403. The reversal of 31444379 is 97344413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31444379 - 2¹⁶ = 31378843 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31444079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15722189 + 15722190.

It is an arithmetic number, because the mean of its divisors is an integer number (15722190).

Almost surely, 2^31444379 is an apocalyptic number.

31444379 is a deficient number, since it is larger than the sum of its proper divisors (1).

31444379 is an equidigital number, since it uses as much as digits as its factorization.

31444379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 31444379 is about 5607.5287783479. The cubic root of 31444379 is about 315.6319855854.

The spelling of 31444379 in words is "thirty-one million, four hundred forty-four thousand, three hundred seventy-nine".