97945967 has 4 divisors (see below), whose sum is σ = 111938256. Its totient is φ = 83953680.

The previous prime is 97945943. The next prime is 97945987. The reversal of 97945967 is 76954979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76954979 = 811 ⋅94889.

It is a cyclic number.

It is not a de Polignac number, because 97945967 - 2¹² = 97941871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97945907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6996134 + ... + 6996147.

It is an arithmetic number, because the mean of its divisors is an integer number (27984564).

Almost surely, 2^97945967 is an apocalyptic number.

97945967 is a deficient number, since it is larger than the sum of its proper divisors (13992289).

97945967 is a wasteful number, since it uses less digits than its factorization.

97945967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13992288.

The product of its digits is 4286520, while the sum is 56.

The square root of 97945967 is about 9896.7654817117. The cubic root of 97945967 is about 460.9588803956.

The spelling of 97945967 in words is "ninety-seven million, nine hundred forty-five thousand, nine hundred sixty-seven".