10661739 has 8 divisors (see below), whose sum is σ = 15508032. Its totient is φ = 6461640.

The previous prime is 10661711. The next prime is 10661741. The reversal of 10661739 is 93716601.

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

It is not a de Polignac number, because 10661739 - 2⁷ = 10661611 is a prime.

It is a super-2 number, since 2×10661739² = 227345357008242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 323083 = 10661739 / (1 + 0 + 6 + 6 + 1 + 7 + 3 + 9).

It is not an unprimeable number, because it can be changed into a prime (10661789) 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, 161509 + ... + 161574.

It is an arithmetic number, because the mean of its divisors is an integer number (1938504).

Almost surely, 2^10661739 is an apocalyptic number.

10661739 is a deficient number, since it is larger than the sum of its proper divisors (4846293).

10661739 is a wasteful number, since it uses less digits than its factorization.

10661739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323097.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 10661739 is about 3265.2318447547. The cubic root of 10661739 is about 220.0945805450.

The spelling of 10661739 in words is "ten million, six hundred sixty-one thousand, seven hundred thirty-nine".