406671555 has 8 divisors (see below), whose sum is σ = 650674512. Its totient is φ = 216891488.

The previous prime is 406671521. The next prime is 406671581. The reversal of 406671555 is 555176604.

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 406671555 - 2⁷ = 406671427 is a prime.

It is a super-2 number, since 2×406671555² = 330763507292236050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13555704 + ... + 13555733.

It is an arithmetic number, because the mean of its divisors is an integer number (81334314).

Almost surely, 2^406671555 is an apocalyptic number.

406671555 is a deficient number, since it is larger than the sum of its proper divisors (244002957).

406671555 is a wasteful number, since it uses less digits than its factorization.

406671555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27111445.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 406671555 is about 20166.0991517943. The cubic root of 406671555 is about 740.8801039348.

The spelling of 406671555 in words is "four hundred six million, six hundred seventy-one thousand, five hundred fifty-five".