61973705 has 8 divisors (see below), whose sum is σ = 76378632. Its totient is φ = 48238848.

The previous prime is 61973689. The next prime is 61973711. The reversal of 61973705 is 50737916.

61973705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12243001 + 49730704 = 3499^2 + 7052^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61973705 - 2⁴ = 61973689 is a prime.

It is a super-2 number, since 2×61973705² = 7681480222854050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167312 + ... + 167681.

It is an arithmetic number, because the mean of its divisors is an integer number (9547329).

Almost surely, 2^61973705 is an apocalyptic number.

It is an amenable number.

61973705 is a deficient number, since it is larger than the sum of its proper divisors (14404927).

61973705 is a wasteful number, since it uses less digits than its factorization.

61973705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335035.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 61973705 is about 7872.3379627656. The cubic root of 61973705 is about 395.7331999593.

The spelling of 61973705 in words is "sixty-one million, nine hundred seventy-three thousand, seven hundred five".