61422787 has 2 divisors, whose sum is σ = 61422788. Its totient is φ = 61422786.

The previous prime is 61422731. The next prime is 61422793. The reversal of 61422787 is 78722416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61422787 - 2⁷ = 61422659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61422287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30711393 + 30711394.

It is an arithmetic number, because the mean of its divisors is an integer number (30711394).

Almost surely, 2^61422787 is an apocalyptic number.

61422787 is a deficient number, since it is larger than the sum of its proper divisors (1).

61422787 is an equidigital number, since it uses as much as digits as its factorization.

61422787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 61422787 is about 7837.2691034569. The cubic root of 61422787 is about 394.5570787042.

The spelling of 61422787 in words is "sixty-one million, four hundred twenty-two thousand, seven hundred eighty-seven".