947404749 has 8 divisors (see below), whose sum is σ = 1264366432. Its totient is φ = 631023120.

The previous prime is 947404739. The next prime is 947404751.

947404749 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 947404749 - 2⁷ = 947404621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 947404698 and 947404707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947404739) 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, 141187 + ... + 147744.

It is an arithmetic number, because the mean of its divisors is an integer number (158045804).

Almost surely, 2^947404749 is an apocalyptic number.

It is an amenable number.

947404749 is a deficient number, since it is larger than the sum of its proper divisors (316961683).

947404749 is a wasteful number, since it uses less digits than its factorization.

947404749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290027.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 947404749 is about 30779.9406919507. The cubic root of 947404749 is about 982.1515788292.

The spelling of 947404749 in words is "nine hundred forty-seven million, four hundred four thousand, seven hundred forty-nine".