1504997 has 4 divisors (see below), whose sum is σ = 1620780. Its totient is φ = 1389216.

The previous prime is 1504991. The next prime is 1504999. The reversal of 1504997 is 7994051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7994051 = 13 ⋅614927.

It can be written as a sum of positive squares in 2 ways, for example, as 988036 + 516961 = 994^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1504997 - 2⁴ = 1504981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1504991) 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, 57872 + ... + 57897.

It is an arithmetic number, because the mean of its divisors is an integer number (405195).

2^1504997 is an apocalyptic number.

It is an amenable number.

1504997 is a deficient number, since it is larger than the sum of its proper divisors (115783).

1504997 is a wasteful number, since it uses less digits than its factorization.

1504997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115782.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1504997 is about 1226.7831919292. The cubic root of 1504997 is about 114.5983975199.

The spelling of 1504997 in words is "one million, five hundred four thousand, nine hundred ninety-seven".