73938149 has 4 divisors (see below), whose sum is σ = 73962720. Its totient is φ = 73913580.

The previous prime is 73938091. The next prime is 73938157. The reversal of 73938149 is 94183937.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73938149 - 2¹⁶ = 73872613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73938349) 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, 7019 + ... + 14040.

It is an arithmetic number, because the mean of its divisors is an integer number (18490680).

Almost surely, 2^73938149 is an apocalyptic number.

It is an amenable number.

73938149 is a deficient number, since it is larger than the sum of its proper divisors (24571).

73938149 is a wasteful number, since it uses less digits than its factorization.

73938149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24570.

The product of its digits is 163296, while the sum is 44.

The square root of 73938149 is about 8598.7294991760. The cubic root of 73938149 is about 419.7166437195.

The spelling of 73938149 in words is "seventy-three million, nine hundred thirty-eight thousand, one hundred forty-nine".