697471320 has 256 divisors, whose sum is σ = 2688215040. Its totient is φ = 140709888.

The previous prime is 697471301. The next prime is 697471321. The reversal of 697471320 is 23174796.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697471321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 249772 + ... + 252548.

It is an arithmetic number, because the mean of its divisors is an integer number (10500840).

Almost surely, 2^697471320 is an apocalyptic number.

697471320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697471320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344107520).

697471320 is an abundant number, since it is smaller than the sum of its proper divisors (1990743720).

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

697471320 is a wasteful number, since it uses less digits than its factorization.

697471320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 697471320 is about 26409.6823153933. The cubic root of 697471320 is about 886.8335569424.

The spelling of 697471320 in words is "six hundred ninety-seven million, four hundred seventy-one thousand, three hundred twenty".