123970397 has 2 divisors, whose sum is σ = 123970398. Its totient is φ = 123970396.

The previous prime is 123970393. The next prime is 123970411. The reversal of 123970397 is 793079321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116942596 + 7027801 = 10814^2 + 2651^2 .

It is a cyclic number.

It is not a de Polignac number, because 123970397 - 2² = 123970393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123970393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61985198 + 61985199.

It is an arithmetic number, because the mean of its divisors is an integer number (61985199).

Almost surely, 2^123970397 is an apocalyptic number.

It is an amenable number.

123970397 is a deficient number, since it is larger than the sum of its proper divisors (1).

123970397 is an equidigital number, since it uses as much as digits as its factorization.

123970397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 123970397 is about 11134.1994323795. The cubic root of 123970397 is about 498.6234094752.

The spelling of 123970397 in words is "one hundred twenty-three million, nine hundred seventy thousand, three hundred ninety-seven".