68379457 has 8 divisors (see below), whose sum is σ = 72475776. Its totient is φ = 64291392.

The previous prime is 68379427. The next prime is 68379469. The reversal of 68379457 is 75497386.

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-68379457 is a prime.

It is a super-2 number, since 2×68379457² = 9351500279229698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68379457.

It is not an unprimeable number, because it can be changed into a prime (68379427) 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, 26068 + ... + 28570.

It is an arithmetic number, because the mean of its divisors is an integer number (9059472).

Almost surely, 2^68379457 is an apocalyptic number.

It is an amenable number.

68379457 is a deficient number, since it is larger than the sum of its proper divisors (4096319).

68379457 is a wasteful number, since it uses less digits than its factorization.

68379457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127.

The product of its digits is 1270080, while the sum is 49.

The square root of 68379457 is about 8269.1872031053. The cubic root of 68379457 is about 408.9233242004.

The spelling of 68379457 in words is "sixty-eight million, three hundred seventy-nine thousand, four hundred fifty-seven".