699972 has 48 divisors (see below), whose sum is σ = 2013312. Its totient is φ = 184320.

The previous prime is 699967. The next prime is 700001. The reversal of 699972 is 279996.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

699972 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (41944).

2⁶⁹⁹⁹⁷² 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 699972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006656).

699972 is an abundant number, since it is smaller than the sum of its proper divisors (1313340).

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

699972 is a wasteful number, since it uses less digits than its factorization.

699972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 699972 is about 836.6432931662. The cubic root of 699972 is about 88.7892162865.

The spelling of 699972 in words is "six hundred ninety-nine thousand, nine hundred seventy-two".