897890742 has 48 divisors (see below), whose sum is σ = 2225283840. Its totient is φ = 256316976.

The previous prime is 897890723. The next prime is 897890743. The reversal of 897890742 is 247098798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897890743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189559 + ... + 194237.

It is an arithmetic number, because the mean of its divisors is an integer number (46360080).

Almost surely, 2^897890742 is an apocalyptic number.

897890742 is an abundant number, since it is smaller than the sum of its proper divisors (1327393098).

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

897890742 is a wasteful number, since it uses less digits than its factorization.

897890742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217 (or 6214 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 897890742 is about 29964.8250787486. The cubic root of 897890742 is about 964.7345478708.

The spelling of 897890742 in words is "eight hundred ninety-seven million, eight hundred ninety thousand, seven hundred forty-two".