61729414 has 16 divisors (see below), whose sum is σ = 98914608. Its totient is φ = 28790272.

The previous prime is 61729391. The next prime is 61729433. The reversal of 61729414 is 41492716.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 61729414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4192 + ... + 11875.

It is an arithmetic number, because the mean of its divisors is an integer number (6182163).

Almost surely, 2^61729414 is an apocalyptic number.

61729414 is a deficient number, since it is larger than the sum of its proper divisors (37185194).

61729414 is a wasteful number, since it uses less digits than its factorization.

61729414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16199.

The product of its digits is 12096, while the sum is 34.

The square root of 61729414 is about 7856.8068577508. The cubic root of 61729414 is about 395.2125417064.

The spelling of 61729414 in words is "sixty-one million, seven hundred twenty-nine thousand, four hundred fourteen".