61422863 has 2 divisors, whose sum is σ = 61422864. Its totient is φ = 61422862.

The previous prime is 61422799. The next prime is 61422869. The reversal of 61422863 is 36822416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61422863 - 2⁶ = 61422799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61422869) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30711431 + 30711432.

It is an arithmetic number, because the mean of its divisors is an integer number (30711432).

Almost surely, 2^61422863 is an apocalyptic number.

61422863 is a deficient number, since it is larger than the sum of its proper divisors (1).

61422863 is an equidigital number, since it uses as much as digits as its factorization.

61422863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 61422863 is about 7837.2739520831. The cubic root of 61422863 is about 394.5572414360.

The spelling of 61422863 in words is "sixty-one million, four hundred twenty-two thousand, eight hundred sixty-three".