73711945 has 8 divisors (see below), whose sum is σ = 89953920. Its totient is φ = 57969840.

The previous prime is 73711931. The next prime is 73711951. The reversal of 73711945 is 54911737.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73711945 - 2¹⁷ = 73580873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124641 + ... + 125230.

It is an arithmetic number, because the mean of its divisors is an integer number (11244240).

Almost surely, 2^73711945 is an apocalyptic number.

It is an amenable number.

73711945 is a deficient number, since it is larger than the sum of its proper divisors (16241975).

73711945 is a wasteful number, since it uses less digits than its factorization.

73711945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249935.

The product of its digits is 26460, while the sum is 37.

The square root of 73711945 is about 8585.5660850057. The cubic root of 73711945 is about 419.2881839403.

It can be divided in two parts, 7371 and 1945, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 73711945 in words is "seventy-three million, seven hundred eleven thousand, nine hundred forty-five".