29390093623 has 4 divisors (see below), whose sum is σ = 32061920328. Its totient is φ = 26718266920.

The previous prime is 29390093597. The next prime is 29390093669. The reversal of 29390093623 is 32639009392.

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 29390093623 - 2¹⁷ = 29389962551 is a prime.

It is a super-2 number, since 2×29390093623² (a number of 22 digits) 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 (29390093423) 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, 1335913336 + ... + 1335913357.

It is an arithmetic number, because the mean of its divisors is an integer number (8015480082).

Almost surely, 2^29390093623 is an apocalyptic number.

29390093623 is a deficient number, since it is larger than the sum of its proper divisors (2671826705).

29390093623 is a wasteful number, since it uses less digits than its factorization.

29390093623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671826704.

The product of its (nonzero) digits is 472392, while the sum is 46.

The spelling of 29390093623 in words is "twenty-nine billion, three hundred ninety million, ninety-three thousand, six hundred twenty-three".