74013517 has 4 divisors (see below), whose sum is σ = 77231520. Its totient is φ = 70795516.

The previous prime is 74013509. The next prime is 74013547. The reversal of 74013517 is 71531047.

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 74013517 - 2³ = 74013509 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 (74013547) 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, 1608967 + ... + 1609012.

It is an arithmetic number, because the mean of its divisors is an integer number (19307880).

Almost surely, 2^74013517 is an apocalyptic number.

It is an amenable number.

74013517 is a deficient number, since it is larger than the sum of its proper divisors (3218003).

74013517 is a wasteful number, since it uses less digits than its factorization.

74013517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218002.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 74013517 is about 8603.1108908348. The cubic root of 74013517 is about 419.8592063984.

The spelling of 74013517 in words is "seventy-four million, thirteen thousand, five hundred seventeen".