699608412 has 72 divisors (see below), whose sum is σ = 1937098800. Its totient is φ = 211911168.

The previous prime is 699608407. The next prime is 699608417. The reversal of 699608412 is 214806996.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (699608407) and next prime (699608417).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699608417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1962 + ... + 37457.

It is an arithmetic number, because the mean of its divisors is an integer number (26904150).

Almost surely, 2^699608412 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 699608412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968549400).

699608412 is an abundant number, since it is smaller than the sum of its proper divisors (1237490388).

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

699608412 is a wasteful number, since it uses less digits than its factorization.

699608412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39475 (or 39470 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 699608412 is about 26450.1117577979. Note that the first 3 decimals coincide. The cubic root of 699608412 is about 887.7384029775.

The spelling of 699608412 in words is "six hundred ninety-nine million, six hundred eight thousand, four hundred twelve".