855397652 has 6 divisors (see below), whose sum is σ = 1496945898. Its totient is φ = 427698824.

The previous prime is 855397639. The next prime is 855397657. The reversal of 855397652 is 256793558.

855397652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 844134916 + 11262736 = 29054^2 + 3356^2 .

It is a super-2 number, since 2×855397652² = 1463410286094226208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 855397652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855397657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106924703 + ... + 106924710.

It is an arithmetic number, because the mean of its divisors is an integer number (249490983).

Almost surely, 2^855397652 is an apocalyptic number.

It is an amenable number.

855397652 is a deficient number, since it is larger than the sum of its proper divisors (641548246).

855397652 is a wasteful number, since it uses less digits than its factorization.

855397652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213849417 (or 213849415 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 50.

The square root of 855397652 is about 29247.1819497195. The cubic root of 855397652 is about 949.2691153988.

The spelling of 855397652 in words is "eight hundred fifty-five million, three hundred ninety-seven thousand, six hundred fifty-two".