1072813 has 4 divisors (see below), whose sum is σ = 1226080. Its totient is φ = 919548.

The previous prime is 1072811. The next prime is 1072823. The reversal of 1072813 is 3182701.

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.

It is not a de Polignac number, because 1072813 - 2¹ = 1072811 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 (1072811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76623 + ... + 76636.

It is an arithmetic number, because the mean of its divisors is an integer number (306520).

2^1072813 is an apocalyptic number.

It is an amenable number.

1072813 is a deficient number, since it is larger than the sum of its proper divisors (153267).

1072813 is an equidigital number, since it uses as much as digits as its factorization.

1072813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153266.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1072813 is about 1035.7668656604. The cubic root of 1072813 is about 102.3704649623.

The spelling of 1072813 in words is "one million, seventy-two thousand, eight hundred thirteen".