61504727 has 8 divisors (see below), whose sum is σ = 63484800. Its totient is φ = 59556024.

The previous prime is 61504697. The next prime is 61504733. The reversal of 61504727 is 72740516.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61504727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61504693 and 61504702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61504747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3827 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (7935600).

Almost surely, 2^61504727 is an apocalyptic number.

61504727 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

61504727 is a deficient number, since it is larger than the sum of its proper divisors (1980073).

61504727 is a wasteful number, since it uses less digits than its factorization.

61504727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15685.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 61504727 is about 7842.4949474003. The cubic root of 61504727 is about 394.7324514110.

The spelling of 61504727 in words is "sixty-one million, five hundred four thousand, seven hundred twenty-seven".