61264047 has 8 divisors (see below), whose sum is σ = 87968944. Its totient is φ = 37700928.

The previous prime is 61264033. The next prime is 61264051. The reversal of 61264047 is 74046216.

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

It is not a de Polignac number, because 61264047 - 2⁴ = 61264031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61264057) 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, 785398 + ... + 785475.

It is an arithmetic number, because the mean of its divisors is an integer number (10996118).

Almost surely, 2^61264047 is an apocalyptic number.

61264047 is a deficient number, since it is larger than the sum of its proper divisors (26704897).

61264047 is a wasteful number, since it uses less digits than its factorization.

61264047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570889.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 61264047 is about 7827.1352997121. The cubic root of 61264047 is about 394.2168899547.

The spelling of 61264047 in words is "sixty-one million, two hundred sixty-four thousand, forty-seven".