168620487 has 16 divisors (see below), whose sum is σ = 257202432. Its totient is φ = 96258240.

The previous prime is 168620479. The next prime is 168620489. The reversal of 168620487 is 784026861.

168620487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168620487 - 2³ = 168620479 is a prime.

It is a super-2 number, since 2×168620487² = 56865737272234338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168620489) 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, 21163 + ... + 28019.

It is an arithmetic number, because the mean of its divisors is an integer number (16075152).

Almost surely, 2^168620487 is an apocalyptic number.

168620487 is a deficient number, since it is larger than the sum of its proper divisors (88581945).

168620487 is a wasteful number, since it uses less digits than its factorization.

168620487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 168620487 is about 12985.3951422358. The cubic root of 168620487 is about 552.4633167703.

The spelling of 168620487 in words is "one hundred sixty-eight million, six hundred twenty thousand, four hundred eighty-seven".