93642487 has 2 divisors, whose sum is σ = 93642488. Its totient is φ = 93642486.

The previous prime is 93642473. The next prime is 93642491. The reversal of 93642487 is 78424639.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93642487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93642457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46821243 + 46821244.

It is an arithmetic number, because the mean of its divisors is an integer number (46821244).

Almost surely, 2^93642487 is an apocalyptic number.

93642487 is a deficient number, since it is larger than the sum of its proper divisors (1).

93642487 is an equidigital number, since it uses as much as digits as its factorization.

93642487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 93642487 is about 9676.9048254078. The cubic root of 93642487 is about 454.1064248165.

The spelling of 93642487 in words is "ninety-three million, six hundred forty-two thousand, four hundred eighty-seven".