61238705 has 12 divisors (see below), whose sum is σ = 80775156. Its totient is φ = 44536800.

The previous prime is 61238689. The next prime is 61238717. The reversal of 61238705 is 50783216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8690704 + 52548001 = 2948^2 + 7249^2 .

It is not a de Polignac number, because 61238705 - 2⁴ = 61238689 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50006 + ... + 51215.

It is an arithmetic number, because the mean of its divisors is an integer number (6731263).

Almost surely, 2^61238705 is an apocalyptic number.

It is an amenable number.

61238705 is a deficient number, since it is larger than the sum of its proper divisors (19536451).

61238705 is a wasteful number, since it uses less digits than its factorization.

61238705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101248 (or 101237 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 61238705 is about 7825.5162768983. The cubic root of 61238705 is about 394.1625262470.

The spelling of 61238705 in words is "sixty-one million, two hundred thirty-eight thousand, seven hundred five".