97720467 has 16 divisors (see below), whose sum is σ = 143582208. Its totient is φ = 58736160.

The previous prime is 97720457. The next prime is 97720559. The reversal of 97720467 is 76402779.

It is not a de Polignac number, because 97720467 - 2⁴ = 97720451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97720417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27459 + ... + 30812.

It is an arithmetic number, because the mean of its divisors is an integer number (8973888).

Almost surely, 2^97720467 is an apocalyptic number.

97720467 is a deficient number, since it is larger than the sum of its proper divisors (45861741).

97720467 is a wasteful number, since it uses less digits than its factorization.

97720467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58330.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 97720467 is about 9885.3663058078. The cubic root of 97720467 is about 460.6048549251.

The spelling of 97720467 in words is "ninety-seven million, seven hundred twenty thousand, four hundred sixty-seven".