697870 has 16 divisors (see below), whose sum is σ = 1322640. Its totient is φ = 264384.

The previous prime is 697831. The next prime is 697877. The reversal of 697870 is 78796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647 + ... + 2026.

It is an arithmetic number, because the mean of its divisors is an integer number (82665).

2⁶⁹⁷⁸⁷⁰ is an apocalyptic number.

697870 is a deficient number, since it is larger than the sum of its proper divisors (624770).

697870 is a wasteful number, since it uses less digits than its factorization.

697870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 697870 is about 835.3861382618. The cubic root of 697870 is about 88.7002498397.

The spelling of 697870 in words is "six hundred ninety-seven thousand, eight hundred seventy".