61948039 has 4 divisors (see below), whose sum is σ = 64641456. Its totient is φ = 59254624.

The previous prime is 61948009. The next prime is 61948057. The reversal of 61948039 is 93084916.

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

It is not a de Polignac number, because 61948039 - 2⁷ = 61947911 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61947992 and 61948010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61948009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346674 + ... + 1346719.

It is an arithmetic number, because the mean of its divisors is an integer number (16160364).

Almost surely, 2^61948039 is an apocalyptic number.

61948039 is a deficient number, since it is larger than the sum of its proper divisors (2693417).

61948039 is a wasteful number, since it uses less digits than its factorization.

61948039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693416.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 61948039 is about 7870.7076556051. The cubic root of 61948039 is about 395.6785623203.

The spelling of 61948039 in words is "sixty-one million, nine hundred forty-eight thousand, thirty-nine".