690080079 has 16 divisors (see below), whose sum is σ = 991688544. Its totient is φ = 424320000.

The previous prime is 690080051. The next prime is 690080093. The reversal of 690080079 is 970080096.

It is not a de Polignac number, because 690080079 - 2²³ = 681691471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690080029) 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, 46579 + ... + 59579.

It is an arithmetic number, because the mean of its divisors is an integer number (61980534).

Almost surely, 2^690080079 is an apocalyptic number.

690080079 is a deficient number, since it is larger than the sum of its proper divisors (301608465).

690080079 is a wasteful number, since it uses less digits than its factorization.

690080079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14378.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 690080079 is about 26269.3753066189. The cubic root of 690080079 is about 883.6897755828.

The spelling of 690080079 in words is "six hundred ninety million, eighty thousand, seventy-nine".