947311906 has 16 divisors (see below), whose sum is σ = 1461304800.
Its totient is φ = 460391008.
The previous prime is 947311903. The next prime is 947311907. The reversal of 947311906 is 609113749.
947311906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (947311903) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34600 + ... + 55603.
It is an arithmetic number, because the mean of its divisors is an integer number (91331550).
Almost surely, 2947311906 is an apocalyptic number.
947311906 is a deficient number, since it is larger than the sum of its proper divisors (513992894).
947311906 is a wasteful number, since it uses less digits than its factorization.
947311906 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90353.
The product of its (nonzero) digits is 40824, while the sum is 40.
The square root of 947311906 is about 30778.4324812035.
The cubic root of 947311906 is about 982.1194950840.
The spelling of 947311906 in words is "nine hundred forty-seven million, three hundred eleven thousand, nine hundred six".