69790812 has 96 divisors (see below), whose sum is σ = 203212800. Its totient is φ = 18150912.

The previous prime is 69790811. The next prime is 69790823. The reversal of 69790812 is 21809796.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69790811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85864 + ... + 86672.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^69790812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69790812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

69790812 is an abundant number, since it is smaller than the sum of its proper divisors (133421988).

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

69790812 is a wasteful number, since it uses less digits than its factorization.

69790812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 69790812 is about 8354.0895374661. The cubic root of 69790812 is about 411.7175853867.

The spelling of 69790812 in words is "sixty-nine million, seven hundred ninety thousand, eight hundred twelve".