61739061 has 12 divisors (see below), whose sum is σ = 86055648. Its totient is φ = 39368824.

The previous prime is 61739047. The next prime is 61739077. The reversal of 61739061 is 16093716.

It is not a de Polignac number, because 61739061 - 2¹³ = 61730869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61739081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17865 + ... + 21038.

It is an arithmetic number, because the mean of its divisors is an integer number (7171304).

Almost surely, 2^61739061 is an apocalyptic number.

It is an amenable number.

61739061 is a deficient number, since it is larger than the sum of its proper divisors (24316587).

61739061 is a wasteful number, since it uses less digits than its factorization.

61739061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38952 (or 38929 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 61739061 is about 7857.4207600204. The cubic root of 61739061 is about 395.2331284173.

The spelling of 61739061 in words is "sixty-one million, seven hundred thirty-nine thousand, sixty-one".