331670487 has 8 divisors (see below), whose sum is σ = 442350720. Its totient is φ = 221051960.

The previous prime is 331670483. The next prime is 331670497. The reversal of 331670487 is 784076133.

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

It is a cyclic number.

It is not a de Polignac number, because 331670487 - 2² = 331670483 is a prime.

It is a super-2 number, since 2×331670487² = 220010623893634338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331670483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939 + ... + 25772.

It is an arithmetic number, because the mean of its divisors is an integer number (55293840).

Almost surely, 2^331670487 is an apocalyptic number.

331670487 is a deficient number, since it is larger than the sum of its proper divisors (110680233).

331670487 is a wasteful number, since it uses less digits than its factorization.

331670487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30853.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 331670487 is about 18211.8227259108. The cubic root of 331670487 is about 692.2063985828.

The spelling of 331670487 in words is "three hundred thirty-one million, six hundred seventy thousand, four hundred eighty-seven".