61880747 has 2 divisors, whose sum is σ = 61880748. Its totient is φ = 61880746.

The previous prime is 61880723. The next prime is 61880771. The reversal of 61880747 is 74708816.

It is a balanced prime because it is at equal distance from previous prime (61880723) and next prime (61880771).

It is a cyclic number.

It is not a de Polignac number, because 61880747 - 2¹⁸ = 61618603 is a prime.

It is equal to p_3666974 and since 61880747 and 3666974 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (61880447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30940373 + 30940374.

It is an arithmetic number, because the mean of its divisors is an integer number (30940374).

Almost surely, 2^61880747 is an apocalyptic number.

61880747 is a deficient number, since it is larger than the sum of its proper divisors (1).

61880747 is an equidigital number, since it uses as much as digits as its factorization.

61880747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 61880747 is about 7866.4316560941. The cubic root of 61880747 is about 395.5352397926.

The spelling of 61880747 in words is "sixty-one million, eight hundred eighty thousand, seven hundred forty-seven".