61423379 has 4 divisors (see below), whose sum is σ = 61445160. Its totient is φ = 61401600.

The previous prime is 61423357. The next prime is 61423459. The reversal of 61423379 is 97332416.

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

It is a cyclic number.

It is not a de Polignac number, because 61423379 - 2¹⁶ = 61357843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61423319) 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, 5897 + ... + 12554.

It is an arithmetic number, because the mean of its divisors is an integer number (15361290).

Almost surely, 2^61423379 is an apocalyptic number.

61423379 is a deficient number, since it is larger than the sum of its proper divisors (21781).

61423379 is a wasteful number, since it uses less digits than its factorization.

61423379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780.

The product of its digits is 27216, while the sum is 35.

The square root of 61423379 is about 7837.3068716237. The cubic root of 61423379 is about 394.5583462958.

The spelling of 61423379 in words is "sixty-one million, four hundred twenty-three thousand, three hundred seventy-nine".