647713254 has 16 divisors (see below), whose sum is σ = 1314762048. Its totient is φ = 212681832.

The previous prime is 647713237. The next prime is 647713273. The reversal of 647713254 is 452317746.

It is a super-3 number, since 3×647713254³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805212 + ... + 806015.

It is an arithmetic number, because the mean of its divisors is an integer number (82172628).

Almost surely, 2^647713254 is an apocalyptic number.

647713254 is an abundant number, since it is smaller than the sum of its proper divisors (667048794).

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

647713254 is a wasteful number, since it uses less digits than its factorization.

647713254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611299.

The product of its digits is 141120, while the sum is 39.

The square root of 647713254 is about 25450.2112761368. The cubic root of 647713254 is about 865.2220815945. Note that the first 3 decimals are identical.

The spelling of 647713254 in words is "six hundred forty-seven million, seven hundred thirteen thousand, two hundred fifty-four".