247427667 has 6 divisors (see below), whose sum is σ = 357395532. Its totient is φ = 164951772.

The previous prime is 247427641. The next prime is 247427683. The reversal of 247427667 is 766724742.

It is not a de Polignac number, because 247427667 - 2⁶ = 247427603 is a prime.

It is a super-2 number, since 2×247427667² = 122440900794125778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247427627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13745973 + ... + 13745990.

It is an arithmetic number, because the mean of its divisors is an integer number (59565922).

Almost surely, 2^247427667 is an apocalyptic number.

247427667 is a deficient number, since it is larger than the sum of its proper divisors (109967865).

247427667 is a wasteful number, since it uses less digits than its factorization.

247427667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27491969 (or 27491966 counting only the distinct ones).

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

The square root of 247427667 is about 15729.8336609133. The cubic root of 247427667 is about 627.7924475046.

The spelling of 247427667 in words is "two hundred forty-seven million, four hundred twenty-seven thousand, six hundred sixty-seven".