49430947 has 4 divisors (see below), whose sum is σ = 49456216. Its totient is φ = 49405680.

The previous prime is 49430939. The next prime is 49430977. The reversal of 49430947 is 74903494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74903494 = 2 ⋅37451747.

It is a cyclic number.

It is not a de Polignac number, because 49430947 - 2³ = 49430939 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49430977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9429 + ... + 13702.

It is an arithmetic number, because the mean of its divisors is an integer number (12364054).

Almost surely, 2^49430947 is an apocalyptic number.

49430947 is a deficient number, since it is larger than the sum of its proper divisors (25269).

49430947 is a wasteful number, since it uses less digits than its factorization.

49430947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25268.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 49430947 is about 7030.7145440560. The cubic root of 49430947 is about 367.0002078862. Note that the first 3 decimals are identical.

The spelling of 49430947 in words is "forty-nine million, four hundred thirty thousand, nine hundred forty-seven".