1077621 has 4 divisors (see below), whose sum is σ = 1436832. Its totient is φ = 718412.

The previous prime is 1077607. The next prime is 1077641. The reversal of 1077621 is 1267701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1267701 = 3 ⋅422567.

It is a cyclic number.

It is not a de Polignac number, because 1077621 - 2¹³ = 1069429 is a prime.

It is a super-2 number, since 2×1077621² = 2322534039282, which contains 22 as substring.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1077591 and 1077600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077641) 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, 179601 + ... + 179606.

It is an arithmetic number, because the mean of its divisors is an integer number (359208).

2^1077621 is an apocalyptic number.

It is an amenable number.

1077621 is a deficient number, since it is larger than the sum of its proper divisors (359211).

1077621 is an equidigital number, since it uses as much as digits as its factorization.

1077621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359210.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 1077621 is about 1038.0852566143. The cubic root of 1077621 is about 102.5231674778.

The spelling of 1077621 in words is "one million, seventy-seven thousand, six hundred twenty-one".