61839105 has 8 divisors (see below), whose sum is σ = 98942592. Its totient is φ = 32980848.

The previous prime is 61839101. The next prime is 61839109. The reversal of 61839105 is 50193816.

It is an interprime number because it is at equal distance from previous prime (61839101) and next prime (61839109).

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

It is not a de Polignac number, because 61839105 - 2² = 61839101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61839101) 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, 2061289 + ... + 2061318.

It is an arithmetic number, because the mean of its divisors is an integer number (12367824).

Almost surely, 2^61839105 is an apocalyptic number.

It is an amenable number.

61839105 is a deficient number, since it is larger than the sum of its proper divisors (37103487).

61839105 is a wasteful number, since it uses less digits than its factorization.

61839105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122615.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 61839105 is about 7863.7843942977. The cubic root of 61839105 is about 395.4464961188.

The spelling of 61839105 in words is "sixty-one million, eight hundred thirty-nine thousand, one hundred five".