68698945 has 16 divisors (see below), whose sum is σ = 97256448. Its totient is φ = 45587520.

The previous prime is 68698939. The next prime is 68698963. The reversal of 68698945 is 54989686.

It is not a de Polignac number, because 68698945 - 2³ = 68698937 is a prime.

It is a super-2 number, since 2×68698945² = 9439090088226050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30574 + ... + 32743.

It is an arithmetic number, because the mean of its divisors is an integer number (6078528).

Almost surely, 2^68698945 is an apocalyptic number.

It is an amenable number.

68698945 is a deficient number, since it is larger than the sum of its proper divisors (28557503).

68698945 is a wasteful number, since it uses less digits than its factorization.

68698945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63360.

The product of its digits is 3732480, while the sum is 55.

The square root of 68698945 is about 8288.4826717560. The cubic root of 68698945 is about 409.5592030423.

The spelling of 68698945 in words is "sixty-eight million, six hundred ninety-eight thousand, nine hundred forty-five".