68621319 has 24 divisors (see below), whose sum is σ = 107819712. Its totient is φ = 41803200.

The previous prime is 68621317. The next prime is 68621327. The reversal of 68621319 is 91312686.

It is not a de Polignac number, because 68621319 - 2¹ = 68621317 is a prime.

It is a super-2 number, since 2×68621319² = 9417770842599522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68621317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8914 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (4492488).

Almost surely, 2^68621319 is an apocalyptic number.

68621319 is a deficient number, since it is larger than the sum of its proper divisors (39198393).

68621319 is a wasteful number, since it uses less digits than its factorization.

68621319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927 (or 5924 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 68621319 is about 8283.7985851903. The cubic root of 68621319 is about 409.4048851714.

The spelling of 68621319 in words is "sixty-eight million, six hundred twenty-one thousand, three hundred nineteen".