68949769 has 16 divisors (see below), whose sum is σ = 80975488. Its totient is φ = 57480192.

The previous prime is 68949763. The next prime is 68949809. The reversal of 68949769 is 96794986.

It is not a de Polignac number, because 68949769 - 2³ = 68949761 is a prime.

It is a super-2 number, since 2×68949769² = 9508141290306722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68949761) 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, 119209 + ... + 119785.

It is an arithmetic number, because the mean of its divisors is an integer number (5060968).

Almost surely, 2^68949769 is an apocalyptic number.

It is an amenable number.

68949769 is a deficient number, since it is larger than the sum of its proper divisors (12025719).

68949769 is a wasteful number, since it uses less digits than its factorization.

68949769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024.

The product of its digits is 5878656, while the sum is 58.

The square root of 68949769 is about 8303.5997615492. The cubic root of 68949769 is about 410.0570394567.

The spelling of 68949769 in words is "sixty-eight million, nine hundred forty-nine thousand, seven hundred sixty-nine".