347949973 has 4 divisors (see below), whose sum is σ = 397657120. Its totient is φ = 298242828.

The previous prime is 347949971. The next prime is 347949989. The reversal of 347949973 is 379949743.

It is a happy number.

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: 379949743 = 73 ⋅5204791.

It is a cyclic number.

It is not a de Polignac number, because 347949973 - 2¹ = 347949971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347949971) 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, 24853563 + ... + 24853576.

It is an arithmetic number, because the mean of its divisors is an integer number (99414280).

Almost surely, 2^347949973 is an apocalyptic number.

It is an amenable number.

347949973 is a deficient number, since it is larger than the sum of its proper divisors (49707147).

347949973 is an equidigital number, since it uses as much as digits as its factorization.

347949973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49707146.

The product of its digits is 5143824, while the sum is 55.

The square root of 347949973 is about 18653.4171936404. The cubic root of 347949973 is about 703.3512587741.

The spelling of 347949973 in words is "three hundred forty-seven million, nine hundred forty-nine thousand, nine hundred seventy-three".