73047253 has 4 divisors (see below), whose sum is σ = 75403648. Its totient is φ = 70690860.

The previous prime is 73047223. The next prime is 73047257. The reversal of 73047253 is 35274037.

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 73047253 - 2⁹ = 73046741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2356363 = 73047253 / (7 + 3 + 0 + 4 + 7 + 2 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73047257) 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, 1178151 + ... + 1178212.

It is an arithmetic number, because the mean of its divisors is an integer number (18850912).

Almost surely, 2^73047253 is an apocalyptic number.

It is an amenable number.

73047253 is a deficient number, since it is larger than the sum of its proper divisors (2356395).

73047253 is a wasteful number, since it uses less digits than its factorization.

73047253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356394.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 73047253 is about 8546.7685706353. The cubic root of 73047253 is about 418.0240765876.

The spelling of 73047253 in words is "seventy-three million, forty-seven thousand, two hundred fifty-three".