97945090 has 16 divisors (see below), whose sum is σ = 176450688. Its totient is φ = 39144816.

The previous prime is 97945087. The next prime is 97945097. The reversal of 97945090 is 9054979.

It is not an unprimeable number, because it can be changed into a prime (97945097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10789 + ... + 17671.

It is an arithmetic number, because the mean of its divisors is an integer number (11028168).

Almost surely, 2^97945090 is an apocalyptic number.

97945090 is a deficient number, since it is larger than the sum of its proper divisors (78505598).

97945090 is a wasteful number, since it uses less digits than its factorization.

97945090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 97945090 is about 9896.7211742071. The cubic root of 97945090 is about 460.9575045957.

It can be divided in two parts, 9794 and 5090, that added together give a square (14884 = 122²).

The spelling of 97945090 in words is "ninety-seven million, nine hundred forty-five thousand, ninety".