68597957 has 4 divisors (see below), whose sum is σ = 70057536. Its totient is φ = 67138380.

The previous prime is 68597909. The next prime is 68597987. The reversal of 68597957 is 75979586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75979586 = 2 ⋅37989793.

It is a cyclic number.

It is not a de Polignac number, because 68597957 - 2²² = 64403653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68597987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729719 + ... + 729812.

It is an arithmetic number, because the mean of its divisors is an integer number (17514384).

Almost surely, 2^68597957 is an apocalyptic number.

It is an amenable number.

68597957 is a deficient number, since it is larger than the sum of its proper divisors (1459579).

68597957 is a wasteful number, since it uses less digits than its factorization.

68597957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459578.

The product of its digits is 4762800, while the sum is 56.

The square root of 68597957 is about 8282.3883632682. The cubic root of 68597957 is about 409.3584195215.

The spelling of 68597957 in words is "sixty-eight million, five hundred ninety-seven thousand, nine hundred fifty-seven".