247474692 has 18 divisors (see below), whose sum is σ = 625561118. Its totient is φ = 82491552.

The previous prime is 247474679. The next prime is 247474697. The reversal of 247474692 is 296474742.

It can be written as a sum of positive squares in only one way, i.e., 193098816 + 54375876 = 13896^2 + 7374^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×247474692² = 122487446360989728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247474697) 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, 3437113 + ... + 3437184.

Almost surely, 2^247474692 is an apocalyptic number.

It is an amenable number.

247474692 is an abundant number, since it is smaller than the sum of its proper divisors (378086426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247474692 is a wasteful number, since it uses less digits than its factorization.

247474692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874307 (or 6874302 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 247474692 is about 15731.3283609491. The cubic root of 247474692 is about 627.8322167970.

Subtracting 247474692 from its reverse (296474742), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 247474692 in words is "two hundred forty-seven million, four hundred seventy-four thousand, six hundred ninety-two".