61983434 has 8 divisors (see below), whose sum is σ = 97868640. Its totient is φ = 29360556.

The previous prime is 61983433. The next prime is 61983437. The reversal of 61983434 is 43438916.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1631143 = 61983434 / (6 + 1 + 9 + 8 + 3 + 4 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (61983433) 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, 815534 + ... + 815609.

It is an arithmetic number, because the mean of its divisors is an integer number (12233580).

Almost surely, 2^61983434 is an apocalyptic number.

61983434 is a deficient number, since it is larger than the sum of its proper divisors (35885206).

61983434 is a wasteful number, since it uses less digits than its factorization.

61983434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631164.

The product of its digits is 62208, while the sum is 38.

The square root of 61983434 is about 7872.9558616824. The cubic root of 61983434 is about 395.7539070579.

The spelling of 61983434 in words is "sixty-one million, nine hundred eighty-three thousand, four hundred thirty-four".