23070387 has 4 divisors (see below), whose sum is σ = 30760520. Its totient is φ = 15380256.

The previous prime is 23070371. The next prime is 23070391. The reversal of 23070387 is 78307032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23070387 - 2⁴ = 23070371 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23070337) 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, 3845062 + ... + 3845067.

It is an arithmetic number, because the mean of its divisors is an integer number (7690130).

Almost surely, 2^23070387 is an apocalyptic number.

23070387 is a deficient number, since it is larger than the sum of its proper divisors (7690133).

23070387 is an equidigital number, since it uses as much as digits as its factorization.

23070387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690132.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 23070387 is about 4803.1642695207. The cubic root of 23070387 is about 284.6765058353.

The spelling of 23070387 in words is "twenty-three million, seventy thousand, three hundred eighty-seven".