31373963 has 2 divisors, whose sum is σ = 31373964. Its totient is φ = 31373962.

The previous prime is 31373939. The next prime is 31373983. The reversal of 31373963 is 36937313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31373963 - 2⁸ = 31373707 is a prime.

It is not a weakly prime, because it can be changed into another prime (31373983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15686981 + 15686982.

It is an arithmetic number, because the mean of its divisors is an integer number (15686982).

Almost surely, 2^31373963 is an apocalyptic number.

31373963 is a deficient number, since it is larger than the sum of its proper divisors (1).

31373963 is an equidigital number, since it uses as much as digits as its factorization.

31373963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 35.

The square root of 31373963 is about 5601.2465576870. The cubic root of 31373963 is about 315.3962025533.

The spelling of 31373963 in words is "thirty-one million, three hundred seventy-three thousand, nine hundred sixty-three".