223440677 has 4 divisors (see below), whose sum is σ = 226269120. Its totient is φ = 220612236.

The previous prime is 223440667. The next prime is 223440689. The reversal of 223440677 is 776044322.

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 a de Polignac number, because none of the positive numbers 2^k-223440677 is a prime.

It is a super-2 number, since 2×223440677² = 99851472276436658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223440667) 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, 1414103 + ... + 1414260.

It is an arithmetic number, because the mean of its divisors is an integer number (56567280).

Almost surely, 2^223440677 is an apocalyptic number.

It is an amenable number.

223440677 is a deficient number, since it is larger than the sum of its proper divisors (2828443).

223440677 is an equidigital number, since it uses as much as digits as its factorization.

223440677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828442.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 223440677 is about 14947.9321981336. The cubic root of 223440677 is about 606.8118867357.

Adding to 223440677 its reverse (776044322), we get a palindrome (999484999).

The spelling of 223440677 in words is "two hundred twenty-three million, four hundred forty thousand, six hundred seventy-seven".