897050990 has 32 divisors (see below), whose sum is σ = 1854195840. Its totient is φ = 309031200.

The previous prime is 897050981. The next prime is 897051011. The reversal of 897050990 is 99050798.

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, 212516 + ... + 216695.

It is an arithmetic number, because the mean of its divisors is an integer number (57943620).

Almost surely, 2^897050990 is an apocalyptic number.

897050990 is an abundant number, since it is smaller than the sum of its proper divisors (957144850).

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

897050990 is a wasteful number, since it uses less digits than its factorization.

897050990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429248.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 897050990 is about 29950.8095049199. The cubic root of 897050990 is about 964.4336981795.

The spelling of 897050990 in words is "eight hundred ninety-seven million, fifty thousand, nine hundred ninety".