61023887 has 2 divisors, whose sum is σ = 61023888. Its totient is φ = 61023886.

The previous prime is 61023883. The next prime is 61023913. The reversal of 61023887 is 78832016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61023887 - 2² = 61023883 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61023883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30511943 + 30511944.

It is an arithmetic number, because the mean of its divisors is an integer number (30511944).

Almost surely, 2^61023887 is an apocalyptic number.

61023887 is a deficient number, since it is larger than the sum of its proper divisors (1).

61023887 is an equidigital number, since it uses as much as digits as its factorization.

61023887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 61023887 is about 7811.7787347057. The cubic root of 61023887 is about 393.7010947239.

The spelling of 61023887 in words is "sixty-one million, twenty-three thousand, eight hundred eighty-seven".