40892947 has 4 divisors (see below), whose sum is σ = 41468976. Its totient is φ = 40316920.

The previous prime is 40892941. The next prime is 40892977. The reversal of 40892947 is 74929804.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40892947 is a prime.

It is a super-2 number, since 2×40892947² = 3344466228689618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40892941) 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, 287908 + ... + 288049.

It is an arithmetic number, because the mean of its divisors is an integer number (10367244).

Almost surely, 2^40892947 is an apocalyptic number.

40892947 is a deficient number, since it is larger than the sum of its proper divisors (576029).

40892947 is an equidigital number, since it uses as much as digits as its factorization.

40892947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576028.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 40892947 is about 6394.7593387085. The cubic root of 40892947 is about 344.5213470060.

The spelling of 40892947 in words is "forty million, eight hundred ninety-two thousand, nine hundred forty-seven".