1087457 has 6 divisors (see below), whose sum is σ = 1265058. Its totient is φ = 932064.

The previous prime is 1087453. The next prime is 1087459. The reversal of 1087457 is 7547801.

It can be written as a sum of positive squares in only one way, i.e., 1073296 + 14161 = 1036^2 + 119^2 .

It is not a de Polignac number, because 1087457 - 2² = 1087453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11048 + ... + 11145.

It is an arithmetic number, because the mean of its divisors is an integer number (210843).

2^1087457 is an apocalyptic number.

It is an amenable number.

1087457 is a deficient number, since it is larger than the sum of its proper divisors (177601).

1087457 is an equidigital number, since it uses as much as digits as its factorization.

1087457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207 (or 22200 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1087457 is about 1042.8120636049. The cubic root of 1087457 is about 102.8341504126.

The spelling of 1087457 in words is "one million, eighty-seven thousand, four hundred fifty-seven".