61674397 has 2 divisors, whose sum is σ = 61674398. Its totient is φ = 61674396.

The previous prime is 61674391. The next prime is 61674413. The reversal of 61674397 is 79347616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60388441 + 1285956 = 7771^2 + 1134^2 .

It is a cyclic number.

It is not a de Polignac number, because 61674397 - 2¹⁹ = 61150109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61674391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30837198 + 30837199.

It is an arithmetic number, because the mean of its divisors is an integer number (30837199).

Almost surely, 2^61674397 is an apocalyptic number.

It is an amenable number.

61674397 is a deficient number, since it is larger than the sum of its proper divisors (1).

61674397 is an equidigital number, since it uses as much as digits as its factorization.

61674397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 61674397 is about 7853.3048457321. The cubic root of 61674397 is about 395.0950943401.

The spelling of 61674397 in words is "sixty-one million, six hundred seventy-four thousand, three hundred ninety-seven".