5421667 has 2 divisors, whose sum is σ = 5421668. Its totient is φ = 5421666.

The previous prime is 5421659. The next prime is 5421673. The reversal of 5421667 is 7661245.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5421667 - 2³ = 5421659 is a prime.

It is not a weakly prime, because it can be changed into another prime (5421607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710833 + 2710834.

It is an arithmetic number, because the mean of its divisors is an integer number (2710834).

Almost surely, 2^5421667 is an apocalyptic number.

5421667 is a deficient number, since it is larger than the sum of its proper divisors (1).

5421667 is an equidigital number, since it uses as much as digits as its factorization.

5421667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 5421667 is about 2328.4473367461. The cubic root of 5421667 is about 175.6753981660.

It can be divided in two parts, 542 and 1667, that added together give a square (2209 = 47²).

The spelling of 5421667 in words is "five million, four hundred twenty-one thousand, six hundred sixty-seven".