61975493 has 4 divisors (see below), whose sum is σ = 62102208. Its totient is φ = 61848780.

The previous prime is 61975471. The next prime is 61975567. The reversal of 61975493 is 39457916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61975493 - 2⁸ = 61975237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61971493) 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, 62621 + ... + 63602.

It is an arithmetic number, because the mean of its divisors is an integer number (15525552).

Almost surely, 2^61975493 is an apocalyptic number.

It is an amenable number.

61975493 is a deficient number, since it is larger than the sum of its proper divisors (126715).

61975493 is a wasteful number, since it uses less digits than its factorization.

61975493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126714.

The product of its digits is 204120, while the sum is 44.

The square root of 61975493 is about 7872.4515241442. The cubic root of 61975493 is about 395.7370056818.

The spelling of 61975493 in words is "sixty-one million, nine hundred seventy-five thousand, four hundred ninety-three".