68694877 has 2 divisors, whose sum is σ = 68694878. Its totient is φ = 68694876.

The previous prime is 68694863. The next prime is 68694907. The reversal of 68694877 is 77849686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53787556 + 14907321 = 7334^2 + 3861^2 .

It is a cyclic number.

It is not a de Polignac number, because 68694877 - 2¹¹ = 68692829 is a prime.

It is a super-2 number, since 2×68694877² = 9437972252090258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68694277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34347438 + 34347439.

It is an arithmetic number, because the mean of its divisors is an integer number (34347439).

Almost surely, 2^68694877 is an apocalyptic number.

It is an amenable number.

68694877 is a deficient number, since it is larger than the sum of its proper divisors (1).

68694877 is an equidigital number, since it uses as much as digits as its factorization.

68694877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 55.

The square root of 68694877 is about 8288.2372673567. The cubic root of 68694877 is about 409.5511188826.

The spelling of 68694877 in words is "sixty-eight million, six hundred ninety-four thousand, eight hundred seventy-seven".