69009790 has 16 divisors (see below), whose sum is σ = 124314768. Its totient is φ = 27582336.

The previous prime is 69009779. The next prime is 69009791. The reversal of 69009790 is 9790096.

It is a super-2 number, since 2×69009790² = 9524702231688200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69009791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19174 + ... + 22486.

It is an arithmetic number, because the mean of its divisors is an integer number (7769673).

Almost surely, 2^69009790 is an apocalyptic number.

69009790 is a deficient number, since it is larger than the sum of its proper divisors (55304978).

69009790 is a wasteful number, since it uses less digits than its factorization.

69009790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 69009790 is about 8307.2131307677. The cubic root of 69009790 is about 410.1759902801.

The spelling of 69009790 in words is "sixty-nine million, nine thousand, seven hundred ninety".