761620753 has 4 divisors (see below), whose sum is σ = 772053988. Its totient is φ = 751187520.

The previous prime is 761620729. The next prime is 761620771. The reversal of 761620753 is 357026167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 357026167 = 709 ⋅503563.

It can be written as a sum of positive squares in 2 ways, for example, as 541632529 + 219988224 = 23273^2 + 14832^2 .

It is not a de Polignac number, because 761620753 - 2⁵ = 761620721 is a prime.

It is a super-3 number, since 3×761620753³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761620253) 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, 5216508 + ... + 5216653.

It is an arithmetic number, because the mean of its divisors is an integer number (193013497).

Almost surely, 2^761620753 is an apocalyptic number.

761620753 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

761620753 is a deficient number, since it is larger than the sum of its proper divisors (10433235).

761620753 is a wasteful number, since it uses less digits than its factorization.

761620753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10433234.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 761620753 is about 27597.4772941296. The cubic root of 761620753 is about 913.2287803519.

The spelling of 761620753 in words is "seven hundred sixty-one million, six hundred twenty thousand, seven hundred fifty-three".