97280378 has 16 divisors (see below), whose sum is σ = 157526376. Its totient is φ = 44789760.

The previous prime is 97280377. The next prime is 97280383. The reversal of 97280378 is 87308279.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18550249 + 78730129 = 4307^2 + 8873^2 .

It is not an unprimeable number, because it can be changed into a prime (97280377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6938 + ... + 15578.

Almost surely, 2^97280378 is an apocalyptic number.

97280378 is a deficient number, since it is larger than the sum of its proper divisors (60245998).

97280378 is a wasteful number, since it uses less digits than its factorization.

97280378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9089.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 97280378 is about 9863.0815671371. The cubic root of 97280378 is about 459.9123620065.

The spelling of 97280378 in words is "ninety-seven million, two hundred eighty thousand, three hundred seventy-eight".