97155386 has 4 divisors (see below), whose sum is σ = 145733082. Its totient is φ = 48577692.

The previous prime is 97155349. The next prime is 97155389. The reversal of 97155386 is 68355179.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96924025 + 231361 = 9845^2 + 481^2 .

It is not an unprimeable number, because it can be changed into a prime (97155389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24288845 + ... + 24288848.

Almost surely, 2^97155386 is an apocalyptic number.

97155386 is a deficient number, since it is larger than the sum of its proper divisors (48577696).

97155386 is a wasteful number, since it uses less digits than its factorization.

97155386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48577695.

The product of its digits is 226800, while the sum is 44.

The square root of 97155386 is about 9856.7431740915. The cubic root of 97155386 is about 459.7153027262.

The spelling of 97155386 in words is "ninety-seven million, one hundred fifty-five thousand, three hundred eighty-six".