691052 has 12 divisors (see below), whose sum is σ = 1248576. Its totient is φ = 334320.

The previous prime is 691051. The next prime is 691063. The reversal of 691052 is 250196.

691052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 691052.

It is not an unprimeable number, because it can be changed into a prime (691051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663 + ... + 2910.

It is an arithmetic number, because the mean of its divisors is an integer number (104048).

2⁶⁹¹⁰⁵² is an apocalyptic number.

691052 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

691052 is a deficient number, since it is larger than the sum of its proper divisors (557524).

691052 is a wasteful number, since it uses less digits than its factorization.

691052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608 (or 5606 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 691052 is about 831.2953747014. The cubic root of 691052 is about 88.4104449074.

The spelling of 691052 in words is "six hundred ninety-one thousand, fifty-two".