97389031 has 2 divisors, whose sum is σ = 97389032. Its totient is φ = 97389030.

The previous prime is 97389013. The next prime is 97389043. The reversal of 97389031 is 13098379.

Together with previous prime (97389013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97389031 - 2⁹ = 97388519 is a prime.

It is a super-2 number, since 2×97389031² = 18969246718237922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97389431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48694515 + 48694516.

It is an arithmetic number, because the mean of its divisors is an integer number (48694516).

Almost surely, 2^97389031 is an apocalyptic number.

97389031 is a deficient number, since it is larger than the sum of its proper divisors (1).

97389031 is an equidigital number, since it uses as much as digits as its factorization.

97389031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 97389031 is about 9868.5880955687. The cubic root of 97389031 is about 460.0835245307.

It can be divided in two parts, 9738 and 9031, that added together give a square (18769 = 137²).

The spelling of 97389031 in words is "ninety-seven million, three hundred eighty-nine thousand, thirty-one".