97771225 has 6 divisors (see below), whose sum is σ = 121236350. Its totient is φ = 78216960.

The previous prime is 97771213. The next prime is 97771231. The reversal of 97771225 is 52217779.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8128201 + 89643024 = 2851^2 + 9468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-97771225 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1955400 + ... + 1955449.

Almost surely, 2^97771225 is an apocalyptic number.

It is an amenable number.

97771225 is a deficient number, since it is larger than the sum of its proper divisors (23465125).

97771225 is a wasteful number, since it uses less digits than its factorization.

97771225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910859 (or 3910854 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 97771225 is about 9887.9333027686. The cubic root of 97771225 is about 460.6845903009.

The spelling of 97771225 in words is "ninety-seven million, seven hundred seventy-one thousand, two hundred twenty-five".