364597981 has 8 divisors (see below), whose sum is σ = 401682528. Its totient is φ = 328170000.

The previous prime is 364597969. The next prime is 364598009. The reversal of 364597981 is 189795463.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-364597981 is a prime.

It is a super-2 number, since 2×364597981² = 265863375498552722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364597901) 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, 162975 + ... + 165196.

It is an arithmetic number, because the mean of its divisors is an integer number (50210316).

Almost surely, 2^364597981 is an apocalyptic number.

It is an amenable number.

364597981 is a deficient number, since it is larger than the sum of its proper divisors (37084547).

364597981 is a wasteful number, since it uses less digits than its factorization.

364597981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328283.

The product of its digits is 1632960, while the sum is 52.

The square root of 364597981 is about 19094.4489577469. The cubic root of 364597981 is about 714.3944738829.

The spelling of 364597981 in words is "three hundred sixty-four million, five hundred ninety-seven thousand, nine hundred eighty-one".