906159898 has 32 divisors (see below), whose sum is σ = 1596000384. Its totient is φ = 377782272.

The previous prime is 906159893. The next prime is 906159899. The reversal of 906159898 is 898951609.

It is a super-2 number, since 2×906159898² = 1642251521486740808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (906159893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151786 + ... + 157642.

It is an arithmetic number, because the mean of its divisors is an integer number (49875012).

Almost surely, 2^906159898 is an apocalyptic number.

906159898 is a deficient number, since it is larger than the sum of its proper divisors (689840486).

906159898 is a wasteful number, since it uses less digits than its factorization.

906159898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 906159898 is about 30102.4898970168. The cubic root of 906159898 is about 967.6870879467.

The spelling of 906159898 in words is "nine hundred six million, one hundred fifty-nine thousand, eight hundred ninety-eight".