1497987 has 16 divisors (see below), whose sum is σ = 2244000. Its totient is φ = 987552.

The previous prime is 1497983. The next prime is 1497997. The reversal of 1497987 is 7897941.

It is not a de Polignac number, because 1497987 - 2² = 1497983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2689 + ... + 3197.

It is an arithmetic number, because the mean of its divisors is an integer number (140250).

2^1497987 is an apocalyptic number.

1497987 is a deficient number, since it is larger than the sum of its proper divisors (746013).

1497987 is a wasteful number, since it uses less digits than its factorization.

1497987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 621 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1497987 is about 1223.9227916825. The cubic root of 1497987 is about 114.4201944479.

The spelling of 1497987 in words is "one million, four hundred ninety-seven thousand, nine hundred eighty-seven".