61972093 has 2 divisors, whose sum is σ = 61972094. Its totient is φ = 61972092.

The previous prime is 61972067. The next prime is 61972147. The reversal of 61972093 is 39027916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 25030009 = 6078^2 + 5003^2 .

It is a cyclic number.

It is not a de Polignac number, because 61972093 - 2²⁵ = 28417661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61972013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30986046 + 30986047.

It is an arithmetic number, because the mean of its divisors is an integer number (30986047).

Almost surely, 2^61972093 is an apocalyptic number.

It is an amenable number.

61972093 is a deficient number, since it is larger than the sum of its proper divisors (1).

61972093 is an equidigital number, since it uses as much as digits as its factorization.

61972093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 61972093 is about 7872.2355782840. The cubic root of 61972093 is about 395.7297687867.

The spelling of 61972093 in words is "sixty-one million, nine hundred seventy-two thousand, ninety-three".