68950915 has 16 divisors (see below), whose sum is σ = 90531936. Its totient is φ = 49996800.

The previous prime is 68950901. The next prime is 68950919. The reversal of 68950915 is 51905986.

It is a happy number.

It is not a de Polignac number, because 68950915 - 2¹³ = 68942723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68950919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18835 + ... + 22195.

It is an arithmetic number, because the mean of its divisors is an integer number (5658246).

Almost surely, 2^68950915 is an apocalyptic number.

68950915 is a deficient number, since it is larger than the sum of its proper divisors (21581021).

68950915 is a wasteful number, since it uses less digits than its factorization.

68950915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 68950915 is about 8303.6687674786. The cubic root of 68950915 is about 410.0593112688.

The spelling of 68950915 in words is "sixty-eight million, nine hundred fifty thousand, nine hundred fifteen".