68924855 has 4 divisors (see below), whose sum is σ = 82709832. Its totient is φ = 55139880.

The previous prime is 68924831. The next prime is 68924879. The reversal of 68924855 is 55842986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55842986 = 2 ⋅27921493.

It is an interprime number because it is at equal distance from previous prime (68924831) and next prime (68924879).

It is not a de Polignac number, because 68924855 - 2¹⁴ = 68908471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6892481 + ... + 6892490.

It is an arithmetic number, because the mean of its divisors is an integer number (20677458).

Almost surely, 2^68924855 is an apocalyptic number.

68924855 is a deficient number, since it is larger than the sum of its proper divisors (13784977).

68924855 is a wasteful number, since it uses less digits than its factorization.

68924855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13784976.

The product of its digits is 691200, while the sum is 47.

The square root of 68924855 is about 8302.0994332759. The cubic root of 68924855 is about 410.0076441169.

The spelling of 68924855 in words is "sixty-eight million, nine hundred twenty-four thousand, eight hundred fifty-five".