1066397435 has 4 divisors (see below), whose sum is σ = 1279676928. Its totient is φ = 853117944.

The previous prime is 1066397411. The next prime is 1066397459. The reversal of 1066397435 is 5347936601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1066397411) and next prime (1066397459).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066397435 is a prime.

It is a super-2 number, since 2×1066397435² = 2274406978749158450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106639739 + ... + 106639748.

It is an arithmetic number, because the mean of its divisors is an integer number (319919232).

Almost surely, 2^1066397435 is an apocalyptic number.

1066397435 is a deficient number, since it is larger than the sum of its proper divisors (213279493).

1066397435 is an equidigital number, since it uses as much as digits as its factorization.

1066397435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213279492.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 1066397435 is about 32655.7412257018. The cubic root of 1066397435 is about 1021.6599381387.

The spelling of 1066397435 in words is "one billion, sixty-six million, three hundred ninety-seven thousand, four hundred thirty-five".