23534749 has 24 divisors (see below), whose sum is σ = 30533760. Its totient is φ = 17974656.

The previous prime is 23534743. The next prime is 23534759. The reversal of 23534749 is 94743532.

It is not a de Polignac number, because 23534749 - 2¹³ = 23526557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23534743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15084 + ... + 16570.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^23534749 is an apocalyptic number.

It is an amenable number.

23534749 is a deficient number, since it is larger than the sum of its proper divisors (6999011).

23534749 is a wasteful number, since it uses less digits than its factorization.

23534749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1530 counting only the distinct ones).

The product of its digits is 90720, while the sum is 37.

The square root of 23534749 is about 4851.2626191539. The cubic root of 23534749 is about 286.5738271264.

It can be divided in two parts, 235347 and 49, that multiplied together give a triangular number (11532003 = T₄₈₀₂).

The spelling of 23534749 in words is "twenty-three million, five hundred thirty-four thousand, seven hundred forty-nine".