61347405 has 16 divisors (see below), whose sum is σ = 112178304. Its totient is φ = 28044480.

The previous prime is 61347401. The next prime is 61347413. The reversal of 61347405 is 50474316.

It is not a de Polignac number, because 61347405 - 2² = 61347401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61347401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292026 + ... + 292235.

It is an arithmetic number, because the mean of its divisors is an integer number (7011144).

Almost surely, 2^61347405 is an apocalyptic number.

It is an amenable number.

61347405 is a deficient number, since it is larger than the sum of its proper divisors (50830899).

61347405 is a wasteful number, since it uses less digits than its factorization.

61347405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584276.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 61347405 is about 7832.4584263180. The cubic root of 61347405 is about 394.3956040096.

The spelling of 61347405 in words is "sixty-one million, three hundred forty-seven thousand, four hundred five".