97738890 has 32 divisors (see below), whose sum is σ = 239003136. Its totient is φ = 25571520.

The previous prime is 97738889. The next prime is 97738909. The reversal of 97738890 is 9883779.

It is a happy 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, 29146 + ... + 32325.

It is an arithmetic number, because the mean of its divisors is an integer number (7468848).

Almost surely, 2^97738890 is an apocalyptic number.

97738890 is an abundant number, since it is smaller than the sum of its proper divisors (141264246).

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

97738890 is a wasteful number, since it uses less digits than its factorization.

97738890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61534.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 97738890 is about 9886.2980938266. The cubic root of 97738890 is about 460.6337986742.

The spelling of 97738890 in words is "ninety-seven million, seven hundred thirty-eight thousand, eight hundred ninety".