987499427 has 2 divisors, whose sum is σ = 987499428. Its totient is φ = 987499426.

The previous prime is 987499423. The next prime is 987499459. The reversal of 987499427 is 724994789.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 987499427 - 2² = 987499423 is a prime.

It is not a weakly prime, because it can be changed into another prime (987499423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493749713 + 493749714.

It is an arithmetic number, because the mean of its divisors is an integer number (493749714).

Almost surely, 2^987499427 is an apocalyptic number.

987499427 is a deficient number, since it is larger than the sum of its proper divisors (1).

987499427 is an equidigital number, since it uses as much as digits as its factorization.

987499427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 59.

The square root of 987499427 is about 31424.5036078535. The cubic root of 987499427 is about 995.8156580365.

The spelling of 987499427 in words is "nine hundred eighty-seven million, four hundred ninety-nine thousand, four hundred twenty-seven".