68990597 has 8 divisors (see below), whose sum is σ = 74841816. Its totient is φ = 63217152.

The previous prime is 68990587. The next prime is 68990609. The reversal of 68990597 is 79509986.

It can be written as a sum of positive squares in 4 ways, for example, as 961 + 68989636 = 31^2 + 8306^2 .

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 68990597 - 2¹⁶ = 68925061 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 (68990527) 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, 17588 + ... + 21149.

It is an arithmetic number, because the mean of its divisors is an integer number (9355227).

Almost surely, 2^68990597 is an apocalyptic number.

It is an amenable number.

68990597 is a deficient number, since it is larger than the sum of its proper divisors (5851219).

68990597 is a wasteful number, since it uses less digits than its factorization.

68990597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38887.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 68990597 is about 8306.0578495457. The cubic root of 68990597 is about 410.1379607111.

The spelling of 68990597 in words is "sixty-eight million, nine hundred ninety thousand, five hundred ninety-seven".