16406761 has 8 divisors (see below), whose sum is σ = 18777600. Its totient is φ = 14042688.

The previous prime is 16406711. The next prime is 16406773. The reversal of 16406761 is 16760461.

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

It is a cyclic number.

It is not a de Polignac number, because 16406761 - 2⁹ = 16406249 is a prime.

It is a super-2 number, since 2×16406761² = 538363613022242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16406701) 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, 5640 + ... + 8038.

It is an arithmetic number, because the mean of its divisors is an integer number (2347200).

Almost surely, 2^16406761 is an apocalyptic number.

It is an amenable number.

16406761 is a deficient number, since it is larger than the sum of its proper divisors (2370839).

16406761 is an equidigital number, since it uses as much as digits as its factorization.

16406761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16406761 is about 4050.5260152232. The cubic root of 16406761 is about 254.1017272895.

The spelling of 16406761 in words is "sixteen million, four hundred six thousand, seven hundred sixty-one".