697858980 has 432 divisors, whose sum is σ = 2662511040. Its totient is φ = 134991360.

The previous prime is 697858969. The next prime is 697859009. The reversal of 697858980 is 89858796.

It is a happy number.

697858980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22511565 + ... + 22511595.

It is an arithmetic number, because the mean of its divisors is an integer number (6163220).

Almost surely, 2^697858980 is an apocalyptic number.

697858980 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 697858980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331255520).

697858980 is an abundant number, since it is smaller than the sum of its proper divisors (1964652060).

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

697858980 is a wasteful number, since it uses less digits than its factorization.

697858980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The square root of 697858980 is about 26417.0206495736. The cubic root of 697858980 is about 886.9978295143.

The spelling of 697858980 in words is "six hundred ninety-seven million, eight hundred fifty-eight thousand, nine hundred eighty".