68992770 has 64 divisors (see below), whose sum is σ = 206447616. Its totient is φ = 14335680.

The previous prime is 68992747. The next prime is 68992787. The reversal of 68992770 is 7729986.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12624 + ... + 17243.

It is an arithmetic number, because the mean of its divisors is an integer number (3225744).

Almost surely, 2^68992770 is an apocalyptic number.

68992770 is an abundant number, since it is smaller than the sum of its proper divisors (137454846).

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

68992770 is a wasteful number, since it uses less digits than its factorization.

68992770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29895.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 68992770 is about 8306.1886566584. The cubic root of 68992770 is about 410.1422667106.

It can be divided in two parts, 6899 and 2770, that added together give a palindrome (9669).

The spelling of 68992770 in words is "sixty-eight million, nine hundred ninety-two thousand, seven hundred seventy".