61419399 has 8 divisors (see below), whose sum is σ = 81951600. Its totient is φ = 40916736.

The previous prime is 61419383. The next prime is 61419433. The reversal of 61419399 is 99391416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61419399 - 2⁴ = 61419383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61419399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61419199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962 + ... + 11255.

It is an arithmetic number, because the mean of its divisors is an integer number (10243950).

Almost surely, 2^61419399 is an apocalyptic number.

61419399 is a deficient number, since it is larger than the sum of its proper divisors (20532201).

61419399 is a wasteful number, since it uses less digits than its factorization.

61419399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14769.

The product of its digits is 52488, while the sum is 42.

The square root of 61419399 is about 7837.0529537576. The cubic root of 61419399 is about 394.5498241546.

The spelling of 61419399 in words is "sixty-one million, four hundred nineteen thousand, three hundred ninety-nine".