698423767 has 4 divisors (see below), whose sum is σ = 739507536. Its totient is φ = 657340000.

The previous prime is 698423741. The next prime is 698423783. The reversal of 698423767 is 767324896.

698423767 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.

It is a cyclic number.

It is not a de Polignac number, because 698423767 - 2¹⁹ = 697899479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698463767) 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, 20541859 + ... + 20541892.

It is an arithmetic number, because the mean of its divisors is an integer number (184876884).

Almost surely, 2^698423767 is an apocalyptic number.

698423767 is a deficient number, since it is larger than the sum of its proper divisors (41083769).

698423767 is a wasteful number, since it uses less digits than its factorization.

698423767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41083768.

The product of its digits is 3048192, while the sum is 52.

The square root of 698423767 is about 26427.7083191108. The cubic root of 698423767 is about 887.2370515598.

The spelling of 698423767 in words is "six hundred ninety-eight million, four hundred twenty-three thousand, seven hundred sixty-seven".