1053997 has 4 divisors (see below), whose sum is σ = 1204576. Its totient is φ = 903420.

The previous prime is 1053991. The next prime is 1054003. The reversal of 1053997 is 7993501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7993501 = 61 ⋅131041.

It is an interprime number because it is at equal distance from previous prime (1053991) and next prime (1054003).

It is not a de Polignac number, because 1053997 - 2³ = 1053989 is a prime.

It is a super-2 number, since 2×1053997² = 2221819352018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053991) 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, 75279 + ... + 75292.

It is an arithmetic number, because the mean of its divisors is an integer number (301144).

2^1053997 is an apocalyptic number.

It is an amenable number.

1053997 is a deficient number, since it is larger than the sum of its proper divisors (150579).

1053997 is an equidigital number, since it uses as much as digits as its factorization.

1053997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150578.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 1053997 is about 1026.6435603460. The cubic root of 1053997 is about 101.7684417832.

The spelling of 1053997 in words is "one million, fifty-three thousand, nine hundred ninety-seven".