61496947 has 2 divisors, whose sum is σ = 61496948. Its totient is φ = 61496946.

The previous prime is 61496921. The next prime is 61496983. The reversal of 61496947 is 74969416.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61496947 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 61496897 and 61496906.

It is not a weakly prime, because it can be changed into another prime (61496987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30748473 + 30748474.

It is an arithmetic number, because the mean of its divisors is an integer number (30748474).

Almost surely, 2^61496947 is an apocalyptic number.

61496947 is a deficient number, since it is larger than the sum of its proper divisors (1).

61496947 is an equidigital number, since it uses as much as digits as its factorization.

61496947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 61496947 is about 7841.9989160928. The cubic root of 61496947 is about 394.7158069018.

The spelling of 61496947 in words is "sixty-one million, four hundred ninety-six thousand, nine hundred forty-seven".