757669 has 4 divisors (see below), whose sum is σ = 826560. Its totient is φ = 688780.

The previous prime is 757661. The next prime is 757693. The reversal of 757669 is 966757.

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: 966757 = 11 ⋅87887.

It is a cyclic number.

It is not a de Polignac number, because 757669 - 2³ = 757661 is a prime.

It is a super-2 number, since 2×757669² = 1148124627122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (757661) 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, 34429 + ... + 34450.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

2⁷⁵⁷⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

757669 is a deficient number, since it is larger than the sum of its proper divisors (68891).

757669 is a wasteful number, since it uses less digits than its factorization.

757669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68890.

The product of its digits is 79380, while the sum is 40.

The square root of 757669 is about 870.4418418252. The cubic root of 757669 is about 91.1646578073.

It can be divided in two parts, 75 and 7669, that added together give a square (7744 = 88²).

The spelling of 757669 in words is "seven hundred fifty-seven thousand, six hundred sixty-nine".