61974343 has 4 divisors (see below), whose sum is σ = 62299008. Its totient is φ = 61649680.

The previous prime is 61974281. The next prime is 61974347. The reversal of 61974343 is 34347916.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61974343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61974347) 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, 162046 + ... + 162427.

It is an arithmetic number, because the mean of its divisors is an integer number (15574752).

Almost surely, 2^61974343 is an apocalyptic number.

61974343 is a deficient number, since it is larger than the sum of its proper divisors (324665).

61974343 is a wasteful number, since it uses less digits than its factorization.

61974343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324664.

The product of its digits is 54432, while the sum is 37.

The square root of 61974343 is about 7872.3784842956. The cubic root of 61974343 is about 395.7345579380.

The spelling of 61974343 in words is "sixty-one million, nine hundred seventy-four thousand, three hundred forty-three".