68287407 has 16 divisors (see below), whose sum is σ = 92072448. Its totient is φ = 45017280.

The previous prime is 68287403. The next prime is 68287411. The reversal of 68287407 is 70478286.

It is an interprime number because it is at equal distance from previous prime (68287403) and next prime (68287411).

It is not a de Polignac number, because 68287407 - 2² = 68287403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68287403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147258 + ... + 147720.

It is an arithmetic number, because the mean of its divisors is an integer number (5754528).

Almost surely, 2^68287407 is an apocalyptic number.

68287407 is a deficient number, since it is larger than the sum of its proper divisors (23785041).

68287407 is a wasteful number, since it uses less digits than its factorization.

68287407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 68287407 is about 8263.6194854313. The cubic root of 68287407 is about 408.7397491093.

The spelling of 68287407 in words is "sixty-eight million, two hundred eighty-seven thousand, four hundred seven".