897684078 has 16 divisors (see below), whose sum is σ = 1795684176. Its totient is φ = 299175360.

The previous prime is 897684077. The next prime is 897684083. The reversal of 897684078 is 870486798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897684077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40738 + ... + 58778.

It is an arithmetic number, because the mean of its divisors is an integer number (112230261).

Almost surely, 2^897684078 is an apocalyptic number.

897684078 is an abundant number, since it is smaller than the sum of its proper divisors (898000098).

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

897684078 is a wasteful number, since it uses less digits than its factorization.

897684078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26339.

The product of its (nonzero) digits is 5419008, while the sum is 57.

The square root of 897684078 is about 29961.3764370064. The cubic root of 897684078 is about 964.6605257990.

The spelling of 897684078 in words is "eight hundred ninety-seven million, six hundred eighty-four thousand, seventy-eight".