61739494 has 8 divisors (see below), whose sum is σ = 92644560. Its totient is φ = 30857976.

The previous prime is 61739459. The next prime is 61739497. The reversal of 61739494 is 49493716.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61739494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61739497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3972 + ... + 11800.

It is an arithmetic number, because the mean of its divisors is an integer number (11580570).

Almost surely, 2^61739494 is an apocalyptic number.

61739494 is a deficient number, since it is larger than the sum of its proper divisors (30905066).

61739494 is a wasteful number, since it uses less digits than its factorization.

61739494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11774.

The product of its digits is 163296, while the sum is 43.

The square root of 61739494 is about 7857.4483135430. The cubic root of 61739494 is about 395.2340523896.

The spelling of 61739494 in words is "sixty-one million, seven hundred thirty-nine thousand, four hundred ninety-four".