428337723 has 8 divisors (see below), whose sum is σ = 623036736. Its totient is φ = 259598600.

The previous prime is 428337709. The next prime is 428337737. The reversal of 428337723 is 327733824.

It is an interprime number because it is at equal distance from previous prime (428337709) and next prime (428337737).

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 428337723 - 2¹⁴ = 428321339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428337703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6489933 + ... + 6489998.

It is an arithmetic number, because the mean of its divisors is an integer number (77879592).

Almost surely, 2^428337723 is an apocalyptic number.

428337723 is a deficient number, since it is larger than the sum of its proper divisors (194699013).

428337723 is a wasteful number, since it uses less digits than its factorization.

428337723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12979945.

The product of its digits is 169344, while the sum is 39.

The square root of 428337723 is about 20696.3214847470. The cubic root of 428337723 is about 753.8103704303.

The spelling of 428337723 in words is "four hundred twenty-eight million, three hundred thirty-seven thousand, seven hundred twenty-three".