42698023 has 4 divisors (see below), whose sum is σ = 42712488. Its totient is φ = 42683560.

The previous prime is 42698021. The next prime is 42698041. The reversal of 42698023 is 32089624.

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 42698023 - 2¹ = 42698021 is a prime.

It is a deceptive number, since it divides R_42698022.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42698023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42698021) 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, 1033 + ... + 9298.

It is an arithmetic number, because the mean of its divisors is an integer number (10678122).

Almost surely, 2^42698023 is an apocalyptic number.

42698023 is the 4133-rd heptagonal number.

42698023 is a deficient number, since it is larger than the sum of its proper divisors (14465).

42698023 is a wasteful number, since it uses less digits than its factorization.

42698023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14464.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 42698023 is about 6534.3724258723. The cubic root of 42698023 is about 349.5177658091.

The spelling of 42698023 in words is "forty-two million, six hundred ninety-eight thousand, twenty-three".