897609726 has 24 divisors (see below), whose sum is σ = 2094423240. Its totient is φ = 276187536.

The previous prime is 897609721. The next prime is 897609731. The reversal of 897609726 is 627906798.

897609726 is a `hidden beast` number, since 8 + 9 + 7 + 609 + 7 + 26 = 666.

It is an interprime number because it is at equal distance from previous prime (897609721) and next prime (897609731).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897609721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1917736 + ... + 1918203.

It is an arithmetic number, because the mean of its divisors is an integer number (87267635).

Almost surely, 2^897609726 is an apocalyptic number.

897609726 is an abundant number, since it is smaller than the sum of its proper divisors (1196813514).

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

897609726 is a wasteful number, since it uses less digits than its factorization.

897609726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835960 (or 3835957 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 897609726 is about 29960.1356138453. The cubic root of 897609726 is about 964.6338919228.

The spelling of 897609726 in words is "eight hundred ninety-seven million, six hundred nine thousand, seven hundred twenty-six".