1072386681 has 8 divisors (see below), whose sum is σ = 1433416224. Its totient is φ = 713140800.

The previous prime is 1072386677. The next prime is 1072386697. The reversal of 1072386681 is 1866832701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1072386681 - 2² = 1072386677 is a prime.

It is a super-2 number, since 2×1072386681² = 2300026387172391522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1072386631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444511 + ... + 446916.

It is an arithmetic number, because the mean of its divisors is an integer number (179177028).

Almost surely, 2^1072386681 is an apocalyptic number.

It is an amenable number.

1072386681 is a deficient number, since it is larger than the sum of its proper divisors (361029543).

1072386681 is an equidigital number, since it uses as much as digits as its factorization.

1072386681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891831.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1072386681 is about 32747.3156304452. The cubic root of 1072386681 is about 1023.5690302857.

The spelling of 1072386681 in words is "one billion, seventy-two million, three hundred eighty-six thousand, six hundred eighty-one".