15397898 has 16 divisors (see below), whose sum is σ = 24009480. Its totient is φ = 7397376.

The previous prime is 15397897. The next prime is 15397909. The reversal of 15397898 is 89879351.

15397898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14462809 + 935089 = 3803^2 + 967^2 .

It is not an unprimeable number, because it can be changed into a prime (15397891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14390 + ... + 15422.

Almost surely, 2^15397898 is an apocalyptic number.

15397898 is a deficient number, since it is larger than the sum of its proper divisors (8611582).

15397898 is a wasteful number, since it uses less digits than its factorization.

15397898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its digits is 544320, while the sum is 50.

The square root of 15397898 is about 3924.0155453311. The cubic root of 15397898 is about 248.7828733606.

The spelling of 15397898 in words is "fifteen million, three hundred ninety-seven thousand, eight hundred ninety-eight".