4077645 has 32 divisors (see below), whose sum is σ = 7668864. Its totient is φ = 1824000.

The previous prime is 4077643. The next prime is 4077649. The reversal of 4077645 is 5467704.

It is not a de Polignac number, because 4077645 - 2¹ = 4077643 is a prime.

It is a super-3 number, since 3×4077645³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4077643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1195 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (239652).

Almost surely, 2^4077645 is an apocalyptic number.

It is an amenable number.

4077645 is a deficient number, since it is larger than the sum of its proper divisors (3591219).

4077645 is a wasteful number, since it uses less digits than its factorization.

4077645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 4077645 is about 2019.3179541618. The cubic root of 4077645 is about 159.7606447143.

The spelling of 4077645 in words is "four million, seventy-seven thousand, six hundred forty-five".