61873905 has 16 divisors (see below), whose sum is σ = 99192384. Its totient is φ = 32934720.

The previous prime is 61873891. The next prime is 61873921. The reversal of 61873905 is 50937816.

It is not a de Polignac number, because 61873905 - 2⁸ = 61873649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4435 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (6199524).

Almost surely, 2^61873905 is an apocalyptic number.

It is an amenable number.

61873905 is a deficient number, since it is larger than the sum of its proper divisors (37318479).

61873905 is a wasteful number, since it uses less digits than its factorization.

61873905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8096.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 61873905 is about 7865.9967581992. The cubic root of 61873905 is about 395.5206614733.

The spelling of 61873905 in words is "sixty-one million, eight hundred seventy-three thousand, nine hundred five".