61606297 has 4 divisors (see below), whose sum is σ = 62056116. Its totient is φ = 61156480.

The previous prime is 61606277. The next prime is 61606309. The reversal of 61606297 is 79260616.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32672656 + 28933641 = 5716^2 + 5379^2 .

It is a cyclic number.

It is not a de Polignac number, because 61606297 - 2¹⁹ = 61082009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61606247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224704 + ... + 224977.

It is an arithmetic number, because the mean of its divisors is an integer number (15514029).

Almost surely, 2^61606297 is an apocalyptic number.

It is an amenable number.

61606297 is a deficient number, since it is larger than the sum of its proper divisors (449819).

61606297 is a wasteful number, since it uses less digits than its factorization.

61606297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449818.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 61606297 is about 7848.9678939336. The cubic root of 61606297 is about 394.9496213055.

The spelling of 61606297 in words is "sixty-one million, six hundred six thousand, two hundred ninety-seven".