10419987 has 4 divisors (see below), whose sum is σ = 13893320. Its totient is φ = 6946656.

The previous prime is 10419979. The next prime is 10419991. The reversal of 10419987 is 78991401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10419987 - 2³ = 10419979 is a prime.

It is a super-2 number, since 2×10419987² = 217152258160338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10419917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736662 + ... + 1736667.

It is an arithmetic number, because the mean of its divisors is an integer number (3473330).

Almost surely, 2^10419987 is an apocalyptic number.

10419987 is a deficient number, since it is larger than the sum of its proper divisors (3473333).

10419987 is an equidigital number, since it uses as much as digits as its factorization.

10419987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473332.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 10419987 is about 3228.0004646840. Note that the first 3 decimals coincide. The cubic root of 10419987 is about 218.4183183457.

The spelling of 10419987 in words is "ten million, four hundred nineteen thousand, nine hundred eighty-seven".