38534739 has 4 divisors (see below), whose sum is σ = 51379656. Its totient is φ = 25689824.

The previous prime is 38534731. The next prime is 38534759. The reversal of 38534739 is 93743583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93743583 = 3 ⋅31247861.

It is a cyclic number.

It is not a de Polignac number, because 38534739 - 2³ = 38534731 is a prime.

It is a super-2 number, since 2×38534739² = 2969852219596242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38534739.

It is not an unprimeable number, because it can be changed into a prime (38534731) 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, 6422454 + ... + 6422459.

It is an arithmetic number, because the mean of its divisors is an integer number (12844914).

Almost surely, 2^38534739 is an apocalyptic number.

38534739 is a deficient number, since it is larger than the sum of its proper divisors (12844917).

38534739 is a wasteful number, since it uses less digits than its factorization.

38534739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12844916.

The product of its digits is 272160, while the sum is 42.

The square root of 38534739 is about 6207.6355402037. The cubic root of 38534739 is about 337.7672001976.

The spelling of 38534739 in words is "thirty-eight million, five hundred thirty-four thousand, seven hundred thirty-nine".