34872947 has 4 divisors (see below), whose sum is σ = 34925136. Its totient is φ = 34820760.

The previous prime is 34872931. The next prime is 34872949. The reversal of 34872947 is 74927843.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34872947 - 2⁴ = 34872931 is a prime.

It is a super-2 number, since 2×34872947² = 2432244864929618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34872898 and 34872907.

It is not an unprimeable number, because it can be changed into a prime (34872949) 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, 25079 + ... + 26432.

It is an arithmetic number, because the mean of its divisors is an integer number (8731284).

Almost surely, 2^34872947 is an apocalyptic number.

34872947 is a deficient number, since it is larger than the sum of its proper divisors (52189).

34872947 is an equidigital number, since it uses as much as digits as its factorization.

34872947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52188.

The product of its digits is 338688, while the sum is 44.

The square root of 34872947 is about 5905.3320821102. The cubic root of 34872947 is about 326.7103427418.

The spelling of 34872947 in words is "thirty-four million, eight hundred seventy-two thousand, nine hundred forty-seven".