68906670 has 32 divisors (see below), whose sum is σ = 189001728. Its totient is φ = 15750048.

The previous prime is 68906657. The next prime is 68906681. The reversal of 68906670 is 7660986.

It is a happy number.

It is a super-3 number, since 3×68906670³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 163854 + ... + 164273.

It is an arithmetic number, because the mean of its divisors is an integer number (5906304).

Almost surely, 2^68906670 is an apocalyptic number.

68906670 is an abundant number, since it is smaller than the sum of its proper divisors (120095058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68906670 is a wasteful number, since it uses less digits than its factorization.

68906670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328144.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 68906670 is about 8301.0041561247. The cubic root of 68906670 is about 409.9715824048.

The spelling of 68906670 in words is "sixty-eight million, nine hundred six thousand, six hundred seventy".