40283977 has 4 divisors (see below), whose sum is σ = 40331520. Its totient is φ = 40236436.

The previous prime is 40283963. The next prime is 40283989. The reversal of 40283977 is 77938204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40283977 - 2¹⁵ = 40251209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40283927) 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, 22477 + ... + 24202.

It is an arithmetic number, because the mean of its divisors is an integer number (10082880).

Almost surely, 2^40283977 is an apocalyptic number.

It is an amenable number.

40283977 is a deficient number, since it is larger than the sum of its proper divisors (47543).

40283977 is an equidigital number, since it uses as much as digits as its factorization.

40283977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47542.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 40283977 is about 6346.9659680827. The cubic root of 40283977 is about 342.8026046766.

The spelling of 40283977 in words is "forty million, two hundred eighty-three thousand, nine hundred seventy-seven".