10870649 has 4 divisors (see below), whose sum is σ = 11019636. Its totient is φ = 10721664.

The previous prime is 10870631. The next prime is 10870663. The reversal of 10870649 is 94607801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94607801 = 89 ⋅1063009.

It can be written as a sum of positive squares in 2 ways, for example, as 4545424 + 6325225 = 2132^2 + 2515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10870649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10870619) 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, 74384 + ... + 74529.

It is an arithmetic number, because the mean of its divisors is an integer number (2754909).

Almost surely, 2^10870649 is an apocalyptic number.

It is an amenable number.

10870649 is a deficient number, since it is larger than the sum of its proper divisors (148987).

10870649 is an equidigital number, since it uses as much as digits as its factorization.

10870649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148986.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 10870649 is about 3297.0667266526. The cubic root of 10870649 is about 221.5228300349.

The spelling of 10870649 in words is "ten million, eight hundred seventy thousand, six hundred forty-nine".