47279690 has 8 divisors (see below), whose sum is σ = 85103460. Its totient is φ = 18911872.

The previous prime is 47279677. The next prime is 47279711. The reversal of 47279690 is 9697274.

47279690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46471489 + 808201 = 6817^2 + 899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×47279690² = 4470738172992200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2363975 + ... + 2363994.

Almost surely, 2^47279690 is an apocalyptic number.

47279690 is a deficient number, since it is larger than the sum of its proper divisors (37823770).

47279690 is a wasteful number, since it uses less digits than its factorization.

47279690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727976.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 47279690 is about 6876.0228330046. The cubic root of 47279690 is about 361.5970455958.

The spelling of 47279690 in words is "forty-seven million, two hundred seventy-nine thousand, six hundred ninety".