988421763 has 16 divisors (see below), whose sum is σ = 1554753536. Its totient is φ = 546592320.

The previous prime is 988421741. The next prime is 988421773. The reversal of 988421763 is 367124889.

It is not a de Polignac number, because 988421763 - 2⁶ = 988421699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988421773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758506 + ... + 759807.

It is an arithmetic number, because the mean of its divisors is an integer number (97172096).

Almost surely, 2^988421763 is an apocalyptic number.

988421763 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

988421763 is a deficient number, since it is larger than the sum of its proper divisors (566331773).

988421763 is a wasteful number, since it uses less digits than its factorization.

988421763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518354.

The product of its digits is 580608, while the sum is 48.

The square root of 988421763 is about 31439.1756094208. The cubic root of 988421763 is about 996.1255960469.

The spelling of 988421763 in words is "nine hundred eighty-eight million, four hundred twenty-one thousand, seven hundred sixty-three".