69798990 has 16 divisors (see below), whose sum is σ = 167517648. Its totient is φ = 18613056.

The previous prime is 69798941. The next prime is 69799003. The reversal of 69798990 is 9989796.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 69798990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163287 + ... + 1163346.

It is an arithmetic number, because the mean of its divisors is an integer number (10469853).

Almost surely, 2^69798990 is an apocalyptic number.

69798990 is an abundant number, since it is smaller than the sum of its proper divisors (97718658).

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

69798990 is a wasteful number, since it uses less digits than its factorization.

69798990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326643.

The product of its (nonzero) digits is 2204496, while the sum is 57.

The square root of 69798990 is about 8354.5789840063. The cubic root of 69798990 is about 411.7336662757.

The spelling of 69798990 in words is "sixty-nine million, seven hundred ninety-eight thousand, nine hundred ninety".