73948513 has 4 divisors (see below), whose sum is σ = 77840560. Its totient is φ = 70056468.

The previous prime is 73948507. The next prime is 73948573. The reversal of 73948513 is 31584937.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31584937 = 863 ⋅36599.

It is a cyclic number.

It is not a de Polignac number, because 73948513 - 2⁹ = 73948001 is a prime.

It is a super-2 number, since 2×73948513² = 10936765149822338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73948573) 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, 1945995 + ... + 1946032.

It is an arithmetic number, because the mean of its divisors is an integer number (19460140).

Almost surely, 2^73948513 is an apocalyptic number.

It is an amenable number.

73948513 is a deficient number, since it is larger than the sum of its proper divisors (3892047).

73948513 is a wasteful number, since it uses less digits than its factorization.

73948513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892046.

The product of its digits is 90720, while the sum is 40.

The square root of 73948513 is about 8599.3321252293. The cubic root of 73948513 is about 419.7362535336.

The spelling of 73948513 in words is "seventy-three million, nine hundred forty-eight thousand, five hundred thirteen".