15347998 has 4 divisors (see below), whose sum is σ = 23022000. Its totient is φ = 7673998.

The previous prime is 15347993. The next prime is 15348001. The reversal of 15347998 is 89974351.

It is a happy number.

15347998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89974351 = 59 ⋅1524989.

It is a super-2 number, since 2×15347998² = 471122085216008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15347993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3836998 + ... + 3837001.

It is an arithmetic number, because the mean of its divisors is an integer number (5755500).

Almost surely, 2^15347998 is an apocalyptic number.

15347998 is a deficient number, since it is larger than the sum of its proper divisors (7674002).

15347998 is an equidigital number, since it uses as much as digits as its factorization.

15347998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7674001.

The product of its digits is 272160, while the sum is 46.

The square root of 15347998 is about 3917.6521029821. The cubic root of 15347998 is about 248.5138388060.

The spelling of 15347998 in words is "fifteen million, three hundred forty-seven thousand, nine hundred ninety-eight".