97280326 has 64 divisors (see below), whose sum is σ = 182710080. Its totient is φ = 38223360.

The previous prime is 97280291. The next prime is 97280327. The reversal of 97280326 is 62308279.

97280326 is a nontrivial binomial coefficient, being equal to C(13949, 2).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97280327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306720 + ... + 307036.

It is an arithmetic number, because the mean of its divisors is an integer number (2854845).

Almost surely, 2^97280326 is an apocalyptic number.

97280326 is the 13948-th triangular number.

97280326 is the 4650-th centered nonagonal number.

97280326 is a deficient number, since it is larger than the sum of its proper divisors (85429754).

97280326 is a wasteful number, since it uses less digits than its factorization.

97280326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 97280326 is about 9863.0789310438. The cubic root of 97280326 is about 459.9122800597.

The spelling of 97280326 in words is "ninety-seven million, two hundred eighty thousand, three hundred twenty-six".