214623457 has 4 divisors (see below), whose sum is σ = 216261936. Its totient is φ = 212984980.

The previous prime is 214623443. The next prime is 214623463. The reversal of 214623457 is 754326412.

214623457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214623457 - 2¹⁹ = 214099169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214623427) 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, 819043 + ... + 819304.

It is an arithmetic number, because the mean of its divisors is an integer number (54065484).

Almost surely, 2^214623457 is an apocalyptic number.

It is an amenable number.

214623457 is a deficient number, since it is larger than the sum of its proper divisors (1638479).

214623457 is a wasteful number, since it uses less digits than its factorization.

214623457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638478.

The product of its digits is 40320, while the sum is 34.

The square root of 214623457 is about 14650.0326620796. The cubic root of 214623457 is about 598.7227059442.

Adding to 214623457 its reverse (754326412), we get a palindrome (968949869).

The spelling of 214623457 in words is "two hundred fourteen million, six hundred twenty-three thousand, four hundred fifty-seven".