97544407 has 2 divisors, whose sum is σ = 97544408. Its totient is φ = 97544406.

The previous prime is 97544389. The next prime is 97544417. The reversal of 97544407 is 70444579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97544407 - 2¹⁵ = 97511639 is a prime.

It is a super-2 number, since 2×97544407² = 19029822673963298, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97544407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97544417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48772203 + 48772204.

It is an arithmetic number, because the mean of its divisors is an integer number (48772204).

Almost surely, 2^97544407 is an apocalyptic number.

97544407 is a deficient number, since it is larger than the sum of its proper divisors (1).

97544407 is an equidigital number, since it uses as much as digits as its factorization.

97544407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 97544407 is about 9876.4572089388. The cubic root of 97544407 is about 460.3280693698.

It can be divided in two parts, 9754 and 4407, that added together give a square (14161 = 119²).

The spelling of 97544407 in words is "ninety-seven million, five hundred forty-four thousand, four hundred seven".