1087401 has 16 divisors (see below), whose sum is σ = 1689984. Its totient is φ = 609024.

The previous prime is 1087391. The next prime is 1087409. The reversal of 1087401 is 1047801.

It is not a de Polignac number, because 1087401 - 2¹¹ = 1085353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1087409) 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, 625 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (105624).

2^1087401 is an apocalyptic number.

It is an amenable number.

1087401 is a deficient number, since it is larger than the sum of its proper divisors (602583).

1087401 is an equidigital number, since it uses as much as digits as its factorization.

1087401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1087401 is about 1042.7852127835. The cubic root of 1087401 is about 102.8323851899.

The spelling of 1087401 in words is "one million, eighty-seven thousand, four hundred one".