61658323 has 4 divisors (see below), whose sum is σ = 61680960. Its totient is φ = 61635688.

The previous prime is 61658309. The next prime is 61658327. The reversal of 61658323 is 32385616.

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-61658323 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61658327) 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, 6568 + ... + 12901.

It is an arithmetic number, because the mean of its divisors is an integer number (15420240).

Almost surely, 2^61658323 is an apocalyptic number.

61658323 is a deficient number, since it is larger than the sum of its proper divisors (22637).

61658323 is a wasteful number, since it uses less digits than its factorization.

61658323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22636.

The product of its digits is 25920, while the sum is 34.

The square root of 61658323 is about 7852.2813882336. The cubic root of 61658323 is about 395.0607672360.

The spelling of 61658323 in words is "sixty-one million, six hundred fifty-eight thousand, three hundred twenty-three".