61675405 has 16 divisors (see below), whose sum is σ = 85489344. Its totient is φ = 42215680.

The previous prime is 61675319. The next prime is 61675429. The reversal of 61675405 is 50457616.

It is a happy number.

It is not a de Polignac number, because 61675405 - 2⁷ = 61675277 is a prime.

It is a Duffinian number.

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, 32047 + ... + 33916.

It is an arithmetic number, because the mean of its divisors is an integer number (5343084).

Almost surely, 2^61675405 is an apocalyptic number.

It is an amenable number.

61675405 is a deficient number, since it is larger than the sum of its proper divisors (23813939).

61675405 is a wasteful number, since it uses less digits than its factorization.

61675405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65996.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 61675405 is about 7853.3690222732. The cubic root of 61675405 is about 395.0972467929.

The spelling of 61675405 in words is "sixty-one million, six hundred seventy-five thousand, four hundred five".