690271470 has 160 divisors (see below), whose sum is σ = 2162179008. Its totient is φ = 154732032.

The previous prime is 690271457. The next prime is 690271481. The reversal of 690271470 is 74172096.

It is a happy number.

690271470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 299362 + ... + 301658.

Almost surely, 2^690271470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690271470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081089504).

690271470 is an abundant number, since it is smaller than the sum of its proper divisors (1471907538).

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

690271470 is a wasteful number, since it uses less digits than its factorization.

690271470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 690271470 is about 26273.0179081125. The cubic root of 690271470 is about 883.7714639943.

The spelling of 690271470 in words is "six hundred ninety million, two hundred seventy-one thousand, four hundred seventy".