699428952 has 128 divisors (see below), whose sum is σ = 2006208000. Its totient is φ = 225671040.

The previous prime is 699428941. The next prime is 699428993. The reversal of 699428952 is 259824996.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 904438 + ... + 905210.

It is an arithmetic number, because the mean of its divisors is an integer number (15673500).

Almost surely, 2^699428952 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 699428952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003104000).

699428952 is an abundant number, since it is smaller than the sum of its proper divisors (1306779048).

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

699428952 is a wasteful number, since it uses less digits than its factorization.

699428952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 908 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 699428952 is about 26446.7191159887. The cubic root of 699428952 is about 887.6624904360.

The spelling of 699428952 in words is "six hundred ninety-nine million, four hundred twenty-eight thousand, nine hundred fifty-two".