61974297 has 48 divisors (see below), whose sum is σ = 114671232. Its totient is φ = 31311360.

The previous prime is 61974281. The next prime is 61974347. The reversal of 61974297 is 79247916.

61974297 is a `hidden beast` number, since 619 + 7 + 4 + 29 + 7 = 666.

It is not a de Polignac number, because 61974297 - 2⁴ = 61974281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61974277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24433 + ... + 26849.

It is an arithmetic number, because the mean of its divisors is an integer number (2388984).

Almost surely, 2^61974297 is an apocalyptic number.

It is an amenable number.

61974297 is a deficient number, since it is larger than the sum of its proper divisors (52696935).

61974297 is a wasteful number, since it uses less digits than its factorization.

61974297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2475 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 61974297 is about 7872.3755626875. The cubic root of 61974297 is about 395.7344600277.

The spelling of 61974297 in words is "sixty-one million, nine hundred seventy-four thousand, two hundred ninety-seven".