61039743 has 8 divisors (see below), whose sum is σ = 81431856. Its totient is φ = 40670400.

The previous prime is 61039739. The next prime is 61039801. The reversal of 61039743 is 34793016.

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

It is not a de Polignac number, because 61039743 - 2² = 61039739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61038743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 11243.

It is an arithmetic number, because the mean of its divisors is an integer number (10178982).

Almost surely, 2^61039743 is an apocalyptic number.

61039743 is a deficient number, since it is larger than the sum of its proper divisors (20392113).

61039743 is a wasteful number, since it uses less digits than its factorization.

61039743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 61039743 is about 7812.7935464851. The cubic root of 61039743 is about 393.7351905743.

The spelling of 61039743 in words is "sixty-one million, thirty-nine thousand, seven hundred forty-three".