690077136 has 80 divisors (see below), whose sum is σ = 2043123200. Its totient is φ = 196608384.

The previous prime is 690077111. The next prime is 690077137. The reversal of 690077136 is 631770096.

It is a junction number, because it is equal to n+sod(n) for n = 690077094 and 690077103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690077137) 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, 124635 + ... + 130053.

It is an arithmetic number, because the mean of its divisors is an integer number (25539040).

Almost surely, 2^690077136 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 690077136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021561600).

690077136 is an abundant number, since it is smaller than the sum of its proper divisors (1353046064).

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

690077136 is a wasteful number, since it uses less digits than its factorization.

690077136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816 (or 5810 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 690077136 is about 26269.3192907620. The cubic root of 690077136 is about 883.6885193505.

The spelling of 690077136 in words is "six hundred ninety million, seventy-seven thousand, one hundred thirty-six".