690769296 has 240 divisors, whose sum is σ = 2427594624. Its totient is φ = 185628672.

The previous prime is 690769291. The next prime is 690769309. The reversal of 690769296 is 692967096.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (690769291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 461926 + ... + 463418.

Almost surely, 2^690769296 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 690769296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213797312).

690769296 is an abundant number, since it is smaller than the sum of its proper divisors (1736825328).

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

690769296 is a wasteful number, since it uses less digits than its factorization.

690769296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 690769296 is about 26282.4902929688. The cubic root of 690769296 is about 883.9838725449.

The spelling of 690769296 in words is "six hundred ninety million, seven hundred sixty-nine thousand, two hundred ninety-six".