940047479 has 4 divisors (see below), whose sum is σ = 1074339984. Its totient is φ = 805754976.

The previous prime is 940047473. The next prime is 940047481. The reversal of 940047479 is 974740049.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 940047479 - 2¹² = 940043383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940047473) 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, 67146242 + ... + 67146255.

It is an arithmetic number, because the mean of its divisors is an integer number (268584996).

Almost surely, 2^940047479 is an apocalyptic number.

940047479 is a deficient number, since it is larger than the sum of its proper divisors (134292505).

940047479 is a wasteful number, since it uses less digits than its factorization.

940047479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134292504.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 940047479 is about 30660.1937208492. The cubic root of 940047479 is about 979.6026012637.

The spelling of 940047479 in words is "nine hundred forty million, forty-seven thousand, four hundred seventy-nine".