97885994 has 4 divisors (see below), whose sum is σ = 146828994. Its totient is φ = 48942996.

The previous prime is 97885993. The next prime is 97886011. The reversal of 97885994 is 49958879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49958879 = 127 ⋅393377.

It can be written as a sum of positive squares in only one way, i.e., 97752769 + 133225 = 9887^2 + 365^2 .

It is not an unprimeable number, because it can be changed into a prime (97885993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24471497 + ... + 24471500.

Almost surely, 2^97885994 is an apocalyptic number.

97885994 is a deficient number, since it is larger than the sum of its proper divisors (48943000).

97885994 is a wasteful number, since it uses less digits than its factorization.

97885994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48942999.

The product of its digits is 6531840, while the sum is 59.

The square root of 97885994 is about 9893.7350884284. The cubic root of 97885994 is about 460.8647784054.

The spelling of 97885994 in words is "ninety-seven million, eight hundred eighty-five thousand, nine hundred ninety-four".