897502140 has 48 divisors (see below), whose sum is σ = 2792230560. Its totient is φ = 239333760.

The previous prime is 897502127. The next prime is 897502163. The reversal of 897502140 is 41205798.

897502140 is a `hidden beast` number, since 8 + 9 + 7 + 502 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 897502095 and 897502104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830481 + ... + 831560.

It is an arithmetic number, because the mean of its divisors is an integer number (58171470).

Almost surely, 2^897502140 is an apocalyptic number.

It is an amenable number.

897502140 is an abundant number, since it is smaller than the sum of its proper divisors (1894728420).

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

897502140 is a wasteful number, since it uses less digits than its factorization.

897502140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662059 (or 1662051 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 897502140 is about 29958.3400741763. The cubic root of 897502140 is about 964.5953505814.

The spelling of 897502140 in words is "eight hundred ninety-seven million, five hundred two thousand, one hundred forty".