1077381 has 20 divisors (see below), whose sum is σ = 1649472. Its totient is φ = 700488.

The previous prime is 1077371. The next prime is 1077397. The reversal of 1077381 is 1837701.

It is not a de Polignac number, because 1077381 - 2⁹ = 1076869 is a prime.

It is a super-2 number, since 2×1077381² = 2321499638322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3666 + ... + 3948.

2^1077381 is an apocalyptic number.

It is an amenable number.

1077381 is a deficient number, since it is larger than the sum of its proper divisors (572091).

1077381 is an equidigital number, since it uses as much as digits as its factorization.

1077381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1077381 is about 1037.9696527356. The cubic root of 1077381 is about 102.5155558385.

1077381 divided by its sum of digits (27) gives a triangular number (39903 = T₂₈₂).

The spelling of 1077381 in words is "one million, seventy-seven thousand, three hundred eighty-one".