426986998 has 16 divisors (see below), whose sum is σ = 647912160. Its totient is φ = 211026816.

The previous prime is 426986983. The next prime is 426986999. The reversal of 426986998 is 899689624.

It is a super-2 number, since 2×426986998² = 364635792922104008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426986999) 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, 87343 + ... + 92101.

It is an arithmetic number, because the mean of its divisors is an integer number (40494510).

Almost surely, 2^426986998 is an apocalyptic number.

426986998 is a deficient number, since it is larger than the sum of its proper divisors (220925162).

426986998 is a wasteful number, since it uses less digits than its factorization.

426986998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271.

The product of its digits is 13436928, while the sum is 61.

The square root of 426986998 is about 20663.6637119365. The cubic root of 426986998 is about 753.0171780538.

The spelling of 426986998 in words is "four hundred twenty-six million, nine hundred eighty-six thousand, nine hundred ninety-eight".