359997981 has 16 divisors (see below), whose sum is σ = 548841600. Its totient is φ = 205610688.

The previous prime is 359997973. The next prime is 359997983. The reversal of 359997981 is 189799953.

It is not a de Polignac number, because 359997981 - 2³ = 359997973 is a prime.

It is a super-2 number, since 2×359997981² = 259197092648152722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (359997983) 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, 65155 + ... + 70463.

It is an arithmetic number, because the mean of its divisors is an integer number (34302600).

Almost surely, 2^359997981 is an apocalyptic number.

It is an amenable number.

359997981 is a deficient number, since it is larger than the sum of its proper divisors (188843619).

359997981 is a wasteful number, since it uses less digits than its factorization.

359997981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8548.

The product of its digits is 5511240, while the sum is 60.

The square root of 359997981 is about 18973.6127556140. The cubic root of 359997981 is about 711.3773310126.

The spelling of 359997981 in words is "three hundred fifty-nine million, nine hundred ninety-seven thousand, nine hundred eighty-one".