276472647 has 24 divisors (see below), whose sum is σ = 436275840. Its totient is φ = 167320080.

The previous prime is 276472589. The next prime is 276472657. The reversal of 276472647 is 746274672.

It is not a de Polignac number, because 276472647 - 2¹⁰ = 276471623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276472657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88254 + ... + 91332.

It is an arithmetic number, because the mean of its divisors is an integer number (18178160).

Almost surely, 2^276472647 is an apocalyptic number.

276472647 is a deficient number, since it is larger than the sum of its proper divisors (159803193).

276472647 is a wasteful number, since it uses less digits than its factorization.

276472647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003 (or 4000 counting only the distinct ones).

The product of its digits is 790272, while the sum is 45.

The square root of 276472647 is about 16627.4666440802. The cubic root of 276472647 is about 651.4544527253.

The spelling of 276472647 in words is "two hundred seventy-six million, four hundred seventy-two thousand, six hundred forty-seven".