61873405 has 16 divisors (see below), whose sum is σ = 85262400. Its totient is φ = 42629760.

The previous prime is 61873393. The next prime is 61873433. The reversal of 61873405 is 50437816.

It is not a de Polignac number, because 61873405 - 2⁵ = 61873373 is a prime.

It is a congruent number.

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, 28560 + ... + 30649.

It is an arithmetic number, because the mean of its divisors is an integer number (5328900).

Almost surely, 2^61873405 is an apocalyptic number.

It is an amenable number.

61873405 is a deficient number, since it is larger than the sum of its proper divisors (23388995).

61873405 is a wasteful number, since it uses less digits than its factorization.

61873405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59244.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 61873405 is about 7865.9649757674. The cubic root of 61873405 is about 395.5195960761.

The spelling of 61873405 in words is "sixty-one million, eight hundred seventy-three thousand, four hundred five".