97287858 has 64 divisors (see below), whose sum is σ = 226022400. Its totient is φ = 30983040.

The previous prime is 97287857. The next prime is 97287871. The reversal of 97287858 is 85878279.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2257920) is a multiple of the sum of its prime factors (784).

It is not an unprimeable number, because it can be changed into a prime (97287857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148660 + ... + 149312.

It is an arithmetic number, because the mean of its divisors is an integer number (3531600).

Almost surely, 2^97287858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97287858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113011200).

97287858 is an abundant number, since it is smaller than the sum of its proper divisors (128734542).

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

97287858 is a wasteful number, since it uses less digits than its factorization.

97287858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 778 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 97287858 is about 9863.4607516835. The cubic root of 97287858 is about 459.9241494343.

The spelling of 97287858 in words is "ninety-seven million, two hundred eighty-seven thousand, eight hundred fifty-eight".