61488747 has 16 divisors (see below), whose sum is σ = 91370880. Its totient is φ = 40868136.

The previous prime is 61488733. The next prime is 61488761. The reversal of 61488747 is 74788416.

It is an interprime number because it is at equal distance from previous prime (61488733) and next prime (61488761).

It is not a de Polignac number, because 61488747 - 2⁸ = 61488491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61488767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6088 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (5710680).

Almost surely, 2^61488747 is an apocalyptic number.

61488747 is a deficient number, since it is larger than the sum of its proper divisors (29882133).

61488747 is a wasteful number, since it uses less digits than its factorization.

61488747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919 (or 6913 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 61488747 is about 7841.4760727812. The cubic root of 61488747 is about 394.6982623264.

The spelling of 61488747 in words is "sixty-one million, four hundred eighty-eight thousand, seven hundred forty-seven".