620761436 has 6 divisors (see below), whose sum is σ = 1086332520. Its totient is φ = 310380716.

The previous prime is 620761433. The next prime is 620761441. The reversal of 620761436 is 634167026.

It is a junction number, because it is equal to n+sod(n) for n = 620761396 and 620761405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620761433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77595176 + ... + 77595183.

It is an arithmetic number, because the mean of its divisors is an integer number (181055420).

Almost surely, 2^620761436 is an apocalyptic number.

It is an amenable number.

620761436 is a deficient number, since it is larger than the sum of its proper divisors (465571084).

620761436 is a wasteful number, since it uses less digits than its factorization.

620761436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155190363 (or 155190361 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 620761436 is about 24915.0845071816. The cubic root of 620761436 is about 853.0508296756.

The spelling of 620761436 in words is "six hundred twenty million, seven hundred sixty-one thousand, four hundred thirty-six".