61226887 has 2 divisors, whose sum is σ = 61226888. Its totient is φ = 61226886.

The previous prime is 61226849. The next prime is 61226923. The reversal of 61226887 is 78862216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61226887 - 2¹⁹ = 60702599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61226287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30613443 + 30613444.

It is an arithmetic number, because the mean of its divisors is an integer number (30613444).

Almost surely, 2^61226887 is an apocalyptic number.

61226887 is a deficient number, since it is larger than the sum of its proper divisors (1).

61226887 is an equidigital number, since it uses as much as digits as its factorization.

61226887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 61226887 is about 7824.7611465143. The cubic root of 61226887 is about 394.1371691224.

The spelling of 61226887 in words is "sixty-one million, two hundred twenty-six thousand, eight hundred eighty-seven".