73780970 has 8 divisors (see below), whose sum is σ = 132805764. Its totient is φ = 29512384.

The previous prime is 73780963. The next prime is 73781053. The reversal of 73780970 is 7908737.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72880369 + 900601 = 8537^2 + 949^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3689039 + ... + 3689058.

Almost surely, 2^73780970 is an apocalyptic number.

73780970 is a deficient number, since it is larger than the sum of its proper divisors (59024794).

73780970 is a wasteful number, since it uses less digits than its factorization.

73780970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378104.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 73780970 is about 8589.5849725118. The cubic root of 73780970 is about 419.4190190801.

The spelling of 73780970 in words is "seventy-three million, seven hundred eighty thousand, nine hundred seventy".