1072987 has 4 divisors (see below), whose sum is σ = 1129480. Its totient is φ = 1016496.

The previous prime is 1072969. The next prime is 1072991. The reversal of 1072987 is 7892701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7892701 = 1669 ⋅4729.

It is a cyclic number.

It is not a de Polignac number, because 1072987 - 2⁷ = 1072859 is a prime.

It is a super-2 number, since 2×1072987² = 2302602204338, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072937) 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, 28218 + ... + 28255.

It is an arithmetic number, because the mean of its divisors is an integer number (282370).

2^1072987 is an apocalyptic number.

1072987 is a deficient number, since it is larger than the sum of its proper divisors (56493).

1072987 is an equidigital number, since it uses as much as digits as its factorization.

1072987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56492.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1072987 is about 1035.8508579907. The cubic root of 1072987 is about 102.3759991663.

It can be divided in two parts, 10729 and 87, that added together give a square (10816 = 104²).

The spelling of 1072987 in words is "one million, seventy-two thousand, nine hundred eighty-seven".