97726261 has 4 divisors (see below), whose sum is σ = 97807392. Its totient is φ = 97645132.

The previous prime is 97726249. The next prime is 97726271. The reversal of 97726261 is 16262779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16262779 = 13 ⋅1250983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97726261 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97726231) 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, 38731 + ... + 41176.

It is an arithmetic number, because the mean of its divisors is an integer number (24451848).

Almost surely, 2^97726261 is an apocalyptic number.

It is an amenable number.

97726261 is a deficient number, since it is larger than the sum of its proper divisors (81131).

97726261 is a wasteful number, since it uses less digits than its factorization.

97726261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81130.

The product of its digits is 63504, while the sum is 40.

The square root of 97726261 is about 9885.6593609127. The cubic root of 97726261 is about 460.6139580736.

The spelling of 97726261 in words is "ninety-seven million, seven hundred twenty-six thousand, two hundred sixty-one".