347427477 has 12 divisors (see below), whose sum is σ = 502470540. Its totient is φ = 231327168.

The previous prime is 347427473. The next prime is 347427499. The reversal of 347427477 is 774724743.

It can be written as a sum of positive squares in 2 ways, for example, as 208918116 + 138509361 = 14454^2 + 11769^2 .

It is not a de Polignac number, because 347427477 - 2² = 347427473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347427473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16578 + ... + 31139.

It is an arithmetic number, because the mean of its divisors is an integer number (41872545).

Almost surely, 2^347427477 is an apocalyptic number.

It is an amenable number.

347427477 is a deficient number, since it is larger than the sum of its proper divisors (155043063).

347427477 is a wasteful number, since it uses less digits than its factorization.

347427477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48532 (or 48529 counting only the distinct ones).

The product of its digits is 921984, while the sum is 45.

The square root of 347427477 is about 18639.4065624418. The cubic root of 347427477 is about 702.9990220048. Note that the first 3 decimals are identical.

The spelling of 347427477 in words is "three hundred forty-seven million, four hundred twenty-seven thousand, four hundred seventy-seven".