1407987 has 12 divisors (see below), whose sum is σ = 2324400. Its totient is φ = 804528.

The previous prime is 1407971. The next prime is 1407997. The reversal of 1407987 is 7897041.

It is not a de Polignac number, because 1407987 - 2⁴ = 1407971 is a prime.

1407987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1407937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11112 + ... + 11237.

It is an arithmetic number, because the mean of its divisors is an integer number (193700).

2^1407987 is an apocalyptic number.

1407987 is a deficient number, since it is larger than the sum of its proper divisors (916413).

1407987 is a wasteful number, since it uses less digits than its factorization.

1407987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362 (or 22359 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1407987 is about 1186.5862800488. The cubic root of 1407987 is about 112.0812282771.

The spelling of 1407987 in words is "one million, four hundred seven thousand, nine hundred eighty-seven".