97773331 has 2 divisors, whose sum is σ = 97773332. Its totient is φ = 97773330.

The previous prime is 97773311. The next prime is 97773343. The reversal of 97773331 is 13337779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97773331 - 2¹³ = 97765139 is a prime.

It is a super-2 number, since 2×97773331² = 19119248509671122, which contains 22 as substring.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (97773311) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48886665 + 48886666.

It is an arithmetic number, because the mean of its divisors is an integer number (48886666).

Almost surely, 2^97773331 is an apocalyptic number.

97773331 is a deficient number, since it is larger than the sum of its proper divisors (1).

97773331 is an equidigital number, since it uses as much as digits as its factorization.

97773331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83349, while the sum is 40.

The square root of 97773331 is about 9888.0397956319. The cubic root of 97773331 is about 460.6878980048.

The spelling of 97773331 in words is "ninety-seven million, seven hundred seventy-three thousand, three hundred thirty-one".