15424397 has 2 divisors, whose sum is σ = 15424398. Its totient is φ = 15424396.

The previous prime is 15424393. The next prime is 15424411. The reversal of 15424397 is 79342451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9572836 + 5851561 = 3094^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 15424397 - 2² = 15424393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15424393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7712198 + 7712199.

It is an arithmetic number, because the mean of its divisors is an integer number (7712199).

Almost surely, 2^15424397 is an apocalyptic number.

It is an amenable number.

15424397 is a deficient number, since it is larger than the sum of its proper divisors (1).

15424397 is an equidigital number, since it uses as much as digits as its factorization.

15424397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 15424397 is about 3927.3906095524. The cubic root of 15424397 is about 248.9255057984.

The spelling of 15424397 in words is "fifteen million, four hundred twenty-four thousand, three hundred ninety-seven".