97772546 has 4 divisors (see below), whose sum is σ = 146658822. Its totient is φ = 48886272.

The previous prime is 97772527. The next prime is 97772551. The reversal of 97772546 is 64527779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64527779 = 5717 ⋅11287.

It can be written as a sum of positive squares in only one way, i.e., 87628321 + 10144225 = 9361^2 + 3185^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97772546.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24443135 + ... + 24443138.

Almost surely, 2^97772546 is an apocalyptic number.

97772546 is a deficient number, since it is larger than the sum of its proper divisors (48886276).

97772546 is a wasteful number, since it uses less digits than its factorization.

97772546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48886275.

The product of its digits is 740880, while the sum is 47.

The square root of 97772546 is about 9888.0001011327. Note that the first 3 decimals coincide. The cubic root of 97772546 is about 460.6866650818.

The spelling of 97772546 in words is "ninety-seven million, seven hundred seventy-two thousand, five hundred forty-six".