1086642497 has 4 divisors (see below), whose sum is σ = 1086708480. Its totient is φ = 1086576516.

The previous prime is 1086642493. The next prime is 1086642527. The reversal of 1086642497 is 7942466801.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1086642497 - 2² = 1086642493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086642493) 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, 14504 + ... + 48822.

It is an arithmetic number, because the mean of its divisors is an integer number (271677120).

Almost surely, 2^1086642497 is an apocalyptic number.

It is an amenable number.

1086642497 is a deficient number, since it is larger than the sum of its proper divisors (65983).

1086642497 is an equidigital number, since it uses as much as digits as its factorization.

1086642497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65982.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 1086642497 is about 32964.2609048042. The cubic root of 1086642497 is about 1028.0846981267.

The spelling of 1086642497 in words is "one billion, eighty-six million, six hundred forty-two thousand, four hundred ninety-seven".